Switch design optimisation: Optimisation of track gauge and track stiffness

Size: px
Start display at page:

Download "Switch design optimisation: Optimisation of track gauge and track stiffness"

Transcription

1 1 Switch design optimisation: Optimisation of track gauge and track stiffness Elias Kassa Professor, Phd Department of Civil and Transport Engineering, NTNU Trondheim, Norway Baneseminaret 2015, Multiconsult, 28 January 2015

2 2 Outline of presentation 1. Background 2. Train-turnout interaction 3. Track gauge optimisation 4. Track stiffness optimisation 5. Conclusions

3 3 Background Turnouts are composed of a switch panel, a crossing panel, and a closure panel The maintenance cost is high in comparison with plain line The demand for a novel turnout design is very high Facing move Trailing move

4 4 Common Damage Mechanisms Plastic deformation (lipping) Wear Fracture Rail Head Cracks

5 5 Common Damage Mechanisms Some remedies to reduce maintenance costs are: 1. reducing turnout population (# turnouts) 2. using more durable and advanced materials 3. adopting a preventative maintenance strategy instead of corrective maintenance 4. optimizing the geometry (layout), support stiffness (structure) and rail profiles

6 6 Rail profile optimisation [not part of this presentation] The rail cross-section varies in the switch and crossing panels Switch rail switch rail stock rail

7 7 TRAIN-TURNOUT INTERACTION Track models Track receptance

8 8 Train-turnout interaction models Vehicle model Wheel/rail contact model Track model Three models Vehicle model Track model Contact model M q v v M q t t C q v C q t v t K q v K q t v t F v F t Q v

9 9 Train-turnout interaction The MBS code SIMPACK is used to model the train-track interaction: freight vehicle model, with two Y25 bogies F v track model with time-varying stiffness and damping values The track model is for the standard turnout type UIC :15 (curve radius 760 m and turnout angle 1:15) Simulation of dynamics simulation IV

10 10 Wheel-rail contact Accurately solving the wheel-rail contact detection at S&C is the first step towards the optimisation exercise Challenges Simpack uses rail profile interpolation based on arc length along the profile curve. Requires very closely measured (sampled) profiles 0 S6300 and

11 11 Track model The track model is based on a simple moving mass-spring-damper system, with few degrees-of-freedom, that is coupled to each wheelset This is a common method in MBS software to account for the track dynamics It is sufficient for studies of vehicle ride dynamics It doesn t accurately predict impact loads in switches and crossings k bv c bv m t, J k by c by c bv k bv 3 degrees-of-freedom m r m r k pz c pz c pz m t, J k pz k by c by k bv c bv c bv k bv 7 degrees-of-freedom

12 12 Track model This modelling approach is useful in parameter studies and optimisation exercise as several simulation can be run in short time The frequency range of the model can be increased by extending the Applied wheel load track model with few more degrees-of-freedom (q) rail k y12 m r Rail pad m 1 m 1 m r k y12 csleep. y12 k pz k z12 Ballast c pz c z12 sleep. m t, J Ballast m 2, J c pz c z12 sleep. Ballast c y12 k pz k by k z12 k y2 sleep. Ballast c by c y2 k bv k z23 c bv c z23 c bv c z23 k bv k z23 m 3 m 3 k z3 c z3 c z3 k z3 Track receptance 9 degrees-of-freedom

13 13 TRACK GAUGE OPTIMISATION

14 14 Track gauge optimisation When a vehicle is running through a switch panel, significant lateral wheelset displacement develop leading to severe flange contact in the curved switch rail sometimes leading to flange contact in the straight switch rail Lateral wheelset displacement, diverging route

15 15 Track gauge optimisation There is an artificial gauge widening on the side of the switch rail (the wheel tries to follow the stock rail) contact point trajectories contact point jump

16 16 Track gauge optimisation There is a short transition with a two point contact situation for the through route In the diverging route, the contact with the switch rail starts earlier and there is a long transition for the load transfer The severe flange contact result in an increase in wear of the switch rails and on some occasions rolling contact fatigue problems through route

17 17 Track gauge optimisation The aim is to relieve the flange contact with the switch rail at the early stage by steering the wheel towards the other rail A continuous gauge variation (dynamic gauge widening) is applied at the switch entry to balance the artificial gauge increase contact point trajectories contact point jump The optimal solutions for the nominal case is validated by running a wider set of simulation cases both in the facing and trailing moves Identify design parameters (maximum gauge widening is the critical parameter) Identify optimal design for facing move for trailing move Evaluate the performance of the optimum design with other load cases

18 18 Optimisation process The geometry of the gauge variation is represented parametrically by: 1. Length L1 where radius is Rc R C d R Out STOCK RAIL 2. Rout (curvature after the jump) 3. LTotal (total length of gauge increase) The influence of Rout and LTotal is not significant as their effect comes after the contact point jump The variable L1 is directly related to the maximum amplitude of the gauge increase d The optimal design is obtained by varying the values of d and five levels are evaluated: d = {8 mm, 12 mm, 16 mm, 18 mm and 20 mm} L 1 L Jump Contact on diverging rail R C L Total Jump to straight SWITCH RAIL

19 19 Track gauge optimisation Results Facing move The wheelset displacement is reduced to mm, when using dynamic gauge widening The 18 mm and 20 mm gauge amplitudes lead to a larger displacement (-6 mm) to the reverse side There is a reduction in wear index with gauge widening Increasing the gauge beyond 18 mm amplitude gives an adverse effect

20 20 Track gauge optimisation Results Trailing move Gauge widening designs with 12 mm and 16 mm amplitudes are examined in trailing move to identify the optimal design The 12 mm gauge widening amplitude leads to a significant improvement in the wear index The wear index for the 16 mm gauge widening is rather increased both in the 1st and 2nd contacts

21 21 Evaluation of the optimum design The performance of the optimal design is assessed by several load cases with respect to wear and RCF indices The load cases are based on 18 measured wheel profiles and 100 realizations generated using one Karhunen-Loève expansion Deterministic analyses were performed for each realization to determine the distribution of the response 100 realizations of wheel profile contact point location

22 22 Evaluation of the optimum design The peak wear index value of 207 N for the nominal case has reduced to 133 N The location of the peak value has shifted forward RCF index exceeded the limit at several locations for the nominal case compared to the gauge optimised geometry

23 23 TRACK STIFFNESS OPTIMISATION

24 24 Advanced track design Track stiffness and track inertia varies along the turnout Steel - Concrete Two Layered Track (Corus) [source: INNOTRACK] vertical track stiffness along the turnout offer a more consistent support offer a bridging support

25 25 Track stiffness optimisation Measured track receptances at three locations in the switch at 4.5 m, 9.1 m and m from the front of turnout are used to extract input data to the track model The stiffness in the upper springdamper elements of the moving 7-dof track model represents the combined rail and rail pad stiffness (kp) The remaining flexibility (the structure underneath the rail pad) is represented by the lower spring-damper elements (kb) m r m r k pz c pz c pz m t, J k pz k by c by k bv c bv c bv k bv 7 degrees-of-freedom Track receptance at location 1

26 26 Track stiffness optimisation There is a 70% change in the value of kp from location 1 to 3 There is an 80% increase in the value of kb The aim is to optimise the vertical track stiffness in the switch panel A simple procedure is followed based on varying the measured track data parameters 26

27 27 Track stiffness optimisation Two alternative stiffness kp variation are developed This change is expected to be gained by adjusting the rail pad stiffness along the turnout In k p _v1, the value of k p is increased by 30% at location 1 not changed at location 2 reduced by 15% at location 3 The overall increase in the k p value is 11% In k p _v2, the value of k p is increased by 28% at location 1 reduced by 6% at location 2 reduced by 19% at location 3 This limits the stiffness increase to about 8%

28 28 Track stiffness optimisation The lower spring-damper element stiffness (k b ) is also adjusted The value of k b is increased by 20% at location 1, reduced by 10% at location 2 and reduced by 20% at location 3 The overall change in the value of k b has reduced to 15% This change is expected to be gained by adjusting under sleeper pads and ballast mats along the turnout

29 29 Track stiffness optimisation Results A slight reduction in wear index is obtained when only k p is adjusted Varying only k b reduces the wear index at the second contact point by almost a half The peak wear index is reduced by 50% at the first contact point and by 80% at the second contact point when using a combined kp and kb optimised values

30 30 Conclusions Several gauge widening amplitudes have been analysed Larger gauge amplitudes lead to larger displacements to the other side of the track which cause additional lateral excitation The geometry with 12 mm gauge widening amplitude resulted in an improved performance, both in the facing and trailing moves for the through route The main benefits are very significant reduction of wear and RCF indices at all times along the switch panel, and therefore improved behaviour in terms of wear and rolling contact fatigue Also, the optimised geometry showed more consistency in the results when using different wheel profiles

31 31 Conclusions With gauge optimisation the contact points near the gauge corner move towards the rail head and this relieves the flange contact Reducing the stiffness variation along the switch panel seems to improve the performance of the turnout There has been demonstration tests in Sweden with different rail pad stiffness to validate the technique

S&C: Understanding Root Causes & Assessing Effective Remedies C4R Final Dissemination Event, Paris 15 th March 2017

S&C: Understanding Root Causes & Assessing Effective Remedies C4R Final Dissemination Event, Paris 15 th March 2017 Capacity for Rail S&C: Understanding Root Causes & Assessing Effective Remedies C4R Final Dissemination Event, Paris 15 th March 2017 Presenter: Dr Yann Bezin Institute of Railway Research, University

More information

Simulation of a Narrow Gauge Vehicle using SIMPACK, Model Validation using Scaled Prototypes on Roller-Rig

Simulation of a Narrow Gauge Vehicle using SIMPACK, Model Validation using Scaled Prototypes on Roller-Rig Simulation of a Narrow Gauge Vehicle using SIMPACK, Model Validation using Scaled Prototypes on Roller-Rig Politecnico di Torino Dipartimento di Meccanica N. Bosso, A.Gugliotta, A. Somà Blue Engineering

More information

High Speed S&C Design and Maintenance

High Speed S&C Design and Maintenance High Speed S&C Design and Maintenance Dr Sin Sin Hsu Head of Track Engineering, NRHS 1 st March 2018 What is a High Speed Turnout? Three main parts: Switch Geometry, profile, components Intermediate Part

More information

Multiphysics Modeling of Railway Pneumatic Suspensions

Multiphysics Modeling of Railway Pneumatic Suspensions SIMPACK User Meeting Salzburg, Austria, 18 th and 19 th May 2011 Multiphysics Modeling of Railway Pneumatic Suspensions Nicolas Docquier Université catholique de Louvain, Belgium Institute of Mechanics,

More information

Results in rail research using SIMPACK

Results in rail research using SIMPACK Results in rail research using SIMPACK Politecnico di Torino - Dip. di Meccanica IIa Facoltà di Ingegneria (Vercelli) N. Bosso, A. Gugliotta, A. Somà The railway dynamic research group of the Mechanical

More information

Applicable standards in HS Infrastructure subsystem TSI (2008/217/EC)

Applicable standards in HS Infrastructure subsystem TSI (2008/217/EC) Applicable standards in HS Infrastructure subsystem TSI (2008/217/EC) ERA 1.0 Page 1/8 Standards or other documents referred to in the HS infrastructure TSI (and therefore mandatory) TSI Sections Characteristics

More information

Rigid-Flexible Coupling Dynamics Simulation Analysis of Wheel/Rail Interaction in High-speed Turnout Zone

Rigid-Flexible Coupling Dynamics Simulation Analysis of Wheel/Rail Interaction in High-speed Turnout Zone Rigid-Flexible Coupling Dynamics Simulation Analysis of Wheel/Rail Interaction in High-speed Turnout Zone 1 China Academy of Railway Sciences Beijing, 100081, China E-mail: ym890531@163.com Weidong Wang

More information

inter.noise 2000 The 29th International Congress and Exhibition on Noise Control Engineering August 2000, Nice, FRANCE

inter.noise 2000 The 29th International Congress and Exhibition on Noise Control Engineering August 2000, Nice, FRANCE Copyright SFA - InterNoise 2000 1 inter.noise 2000 The 29th International Congress and Exhibition on Noise Control Engineering 27-30 August 2000, Nice, FRANCE I-INCE Classification: 0.0 EFFECTS OF TRANSVERSE

More information

Study on System Dynamics of Long and Heavy-Haul Train

Study on System Dynamics of Long and Heavy-Haul Train Copyright c 2008 ICCES ICCES, vol.7, no.4, pp.173-180 Study on System Dynamics of Long and Heavy-Haul Train Weihua Zhang 1, Guangrong Tian and Maoru Chi The long and heavy-haul train transportation has

More information

Monitoring of switches & crossings (turnouts) and tracks

Monitoring of switches & crossings (turnouts) and tracks Monitoring of switches & crossings (turnouts) and tracks Elias Kassa, Amund Skavhaug Norwegian University of Science and Technology Amir M. Kaynia NGI Outline Background Analysis of turnout failure statistics

More information

Optimisation of Wheelset Maintenance using Whole System Cost Modelling

Optimisation of Wheelset Maintenance using Whole System Cost Modelling Optimisation of Wheelset Maintenance using Whole System Cost Modelling Adam Bevan, Paul Molyneux-Berry University of Huddersfield Steve Mills Rail Safety & Standards Board Andy Rhodes, Daniel Ling Serco

More information

Simulation of freight train during braking operation using SIMPACK

Simulation of freight train during braking operation using SIMPACK Simulation of freight train during braking operation using SIMPACK Politecnico di Torino Dipartimento di Meccanica N. Bosso, A.Gugliotta, A. Somà 1/21 Introduction This activity has been made in a research

More information

Gauge Face Wear Caused with Vehicle/Track Interaction

Gauge Face Wear Caused with Vehicle/Track Interaction Gauge Face Wear Caused with Vehicle/Track Interaction Makoto ISHIDA*, Mitsunobu TAKIKAWA, Ying JIN Railway Technical Research Institute 2-8-38 Hikari-cho, Kokubunji-shi, Tokyo 185-8540, Japan Tel: +81-42-573-7291,

More information

Railway Bogies with Radial Elastic Wheelsets

Railway Bogies with Radial Elastic Wheelsets EUROMECH Colloquium 409, University of Hannover, March 6 9, 2000 Railway Bogies with Radial Elastic Wheelsets H. Claus and W. Schiehlen Contents: Introduction MBS Model and Excitation Model Improvements

More information

QUIET-TRACK: Track optimisation and monitoring for further noise reduction

QUIET-TRACK: Track optimisation and monitoring for further noise reduction QUIET-TRACK: Track optimisation and monitoring for further noise reduction dr.ir. Geert Desanghere Akron, Belgium geert.desanghere@akron.be www.akron.be Quiet-Track: EU-project: Consortium QUIET-TRACK:

More information

Design and Calculation of Fast-Running Shunting Locomotives

Design and Calculation of Fast-Running Shunting Locomotives Design and Calculation of Fast-Running Shunting Locomotives Dipl.-Ing. Claudia Kossmann Stadler Bussnang AG (Switzerland) SIMPACK User Meeting 2011 Shunting Locomotive Ee 922 - Introduction 2007: Swiss

More information

inter.noise 2000 The 29th International Congress and Exhibition on Noise Control Engineering August 2000, Nice, FRANCE

inter.noise 2000 The 29th International Congress and Exhibition on Noise Control Engineering August 2000, Nice, FRANCE Copyright SFA - InterNoise 2000 1 inter.noise 2000 The 29th International Congress and Exhibition on Noise Control Engineering 27-30 August 2000, Nice, FRANCE I-INCE Classification: 7.6 ROLLING NOISE FROM

More information

Simulation of railway track maintenance trains at MATISA

Simulation of railway track maintenance trains at MATISA Simulation of railway track maintenance trains at MATISA MultiBody Simulation User Group Meeting Rémi ALLIOT, Solution Consultant, Dassault Systèmes SE Jacques ZUERCHER, Head of Calculation Department,

More information

Development of Advanced Computational Models of Railway Vehicles

Development of Advanced Computational Models of Railway Vehicles Development of Advanced Computational Models of Railway Vehicles Extended Abstract Hugo Miguel Pacheco Magalhães Instituto Superior Técnico Universidade Técnica de Lisboa Abstract In this thesis, multibody

More information

The SUSTRAIL high speed freight vehicle: Simulation of novel running gear design

The SUSTRAIL high speed freight vehicle: Simulation of novel running gear design The SUSTRAIL high speed freight vehicle: Simulation of novel running gear design Simon Iwnicki, Yann Bezin, Anna Orlova 2, Per-Anders Johnsson 3, Sebastian Stichel 3, Henning Schelle 4, Institute of Railway

More information

Railway Engineering: Track and Train Interaction COURSE SYLLABUS

Railway Engineering: Track and Train Interaction COURSE SYLLABUS COURSE SYLLABUS Week 1: Vehicle-Track Interaction When a railway vehicle passes over a track, the interaction between the two yields forces on both vehicle and track. What is the nature of these forces,

More information

FLUID DYNAMICS TRANSIENT RESPONSE SIMULATION OF A VEHICLE EQUIPPED WITH A TURBOCHARGED DIESEL ENGINE USING GT-POWER

FLUID DYNAMICS TRANSIENT RESPONSE SIMULATION OF A VEHICLE EQUIPPED WITH A TURBOCHARGED DIESEL ENGINE USING GT-POWER GT-SUITE USERS CONFERENCE FRANKFURT, OCTOBER 20 TH 2003 FLUID DYNAMICS TRANSIENT RESPONSE SIMULATION OF A VEHICLE EQUIPPED WITH A TURBOCHARGED DIESEL ENGINE USING GT-POWER TEAM OF WORK: A. GALLONE, C.

More information

Interrelation between Wavelengths of Track Geometry Irregularities and Rail Vehicle Dynamic Properties

Interrelation between Wavelengths of Track Geometry Irregularities and Rail Vehicle Dynamic Properties THE ARCHIVES OF TRANSPORT VOL. XXV-XXVI NO 1-2 213 Interrelation between Wavelengths of Track Geometry Irregularities and Rail Vehicle Dynamic Properties Bogdan Sowinski Received January 213 Abstract The

More information

NUMERICAL ANALYSIS OF LOAD DISTRIBUTION IN RAILWAY TRACK UNDER WHEELSET

NUMERICAL ANALYSIS OF LOAD DISTRIBUTION IN RAILWAY TRACK UNDER WHEELSET Journal of KONES Powertrain and Transport, Vol., No. 3 13 NUMERICAL ANALYSIS OF LOAD DISTRIBUTION IN RAILWAY TRACK UNDER WHEELSET Piotr Szurgott, Krzysztof Berny Military University of Technology Department

More information

Shape optimisation of a railway wheel profile

Shape optimisation of a railway wheel profile Shape optimisation of a railway wheel profile Coenraad Esveld, Professor of Railway Engineering and Valery L. Markine, Assistant Professor of Railway Engineering and Ivan Y. Shevtsov, Researcher of Railway

More information

Research Results Digest 72

Research Results Digest 72 December 2005 TRANSIT COOPERATIVE RESEARCH PROGRAM Sponsored by the Federal Transit Administration Responsible Senior Program Officer: Christopher W. Jenks Subject Areas: VI Public Transit, VII Rail Research

More information

Influence of Kink Protection Systems on a Tram Passing Through Curve

Influence of Kink Protection Systems on a Tram Passing Through Curve Influence of Kink Protection Systems on a Tram Passing Through Curve Grzegorz Fira, Tomas Załuski, Albert Szałajko,, Augsburg, 8-9 October www.ec-e.pl Content Existing system of kink protection for a tram

More information

ROTATING MACHINERY DYNAMICS

ROTATING MACHINERY DYNAMICS Pepperdam Industrial Park Phone 800-343-0803 7261 Investment Drive Fax 843-552-4790 N. Charleston, SC 29418 www.wheeler-ind.com ROTATING MACHINERY DYNAMICS SOFTWARE MODULE LIST Fluid Film Bearings Featuring

More information

Mathematical Modelling and Simulation Of Semi- Active Suspension System For An 8 8 Armoured Wheeled Vehicle With 11 DOF

Mathematical Modelling and Simulation Of Semi- Active Suspension System For An 8 8 Armoured Wheeled Vehicle With 11 DOF Mathematical Modelling and Simulation Of Semi- Active Suspension System For An 8 8 Armoured Wheeled Vehicle With 11 DOF Sujithkumar M Sc C, V V Jagirdar Sc D and MW Trikande Sc G VRDE, Ahmednagar Maharashtra-414006,

More information

Wheel-Rail Contact: GETTING THE RIGHT PROFILE

Wheel-Rail Contact: GETTING THE RIGHT PROFILE Wheel-Rail Contact: GETTING THE RIGHT PROFILE Simon Iwnicki, Julian Stow and Adam Bevan Rail Technology Unit Manchester Metropolitan University The Contact The contact patch between a wheel and a rail

More information

Track friendly vehicles - principles, advantages. Sebastian Stichel August 8, 2007

Track friendly vehicles - principles, advantages. Sebastian Stichel August 8, 2007 Track friendly vehicles - principles, advantages Sebastian Stichel August 8, 2007 What is track friendliness A track friendly vehicle is a vehicle that causes low maintenance costs on the track (and on

More information

Optimisation of Railway Wheel Profiles using a Genetic Algorithm

Optimisation of Railway Wheel Profiles using a Genetic Algorithm The Rail Technology Unit Optimisation of Railway Wheel Profiles using a Genetic Algorithm Persson I., Iwnicki S.D. This article was download from the Rail Technology Unit Website at MMU Rail Technology

More information

Seismic-upgrading of Existing Stacks of Nuclear Power Station using Structural Control Oil Dampers

Seismic-upgrading of Existing Stacks of Nuclear Power Station using Structural Control Oil Dampers October 12-17, 28, Beijing, China ABSTRACT : Seismic-upgrading of Existing Stacks of Nuclear Power Station using Structural Control Oil Dampers Ryu Shimamoto 1, Fukashi Mori 2, Tomonori Kitaori 2, Satoru

More information

Dynamic characteristics of railway concrete sleepers using impact excitation techniques and model analysis

Dynamic characteristics of railway concrete sleepers using impact excitation techniques and model analysis Dynamic characteristics of railway concrete sleepers using impact excitation techniques and model analysis Akira Aikawa *, Fumihiro Urakawa *, Kazuhisa Abe **, Akira Namura * * Railway Technical Research

More information

Performance Based Track Geometry: Optimizing Transit System Maintenance

Performance Based Track Geometry: Optimizing Transit System Maintenance Performance Based Track Geometry: Optimizing Transit System Maintenance Charity Duran Ketchum Transportation Technology Center, Inc. Pueblo, Colorado Nicholas Wilson Transportation Technology Center, Inc.

More information

Innovative designs and methods for VHST 2 nd Dissemination Event, Brussels 3 rd November 2016

Innovative designs and methods for VHST 2 nd Dissemination Event, Brussels 3 rd November 2016 Capacity for Rail Innovative designs and methods for VHST 2 nd Dissemination Event, Brussels 3 rd November 2016 Miguel Rodríguez Plaza Adif Introduction C4R WP 1.2: VHST 2 Objectives: To identify market

More information

Development of Rattle Noise Analysis Technology for Column Type Electric Power Steering Systems

Development of Rattle Noise Analysis Technology for Column Type Electric Power Steering Systems TECHNICAL REPORT Development of Rattle Noise Analysis Technology for Column Type Electric Power Steering Systems S. NISHIMURA S. ABE The backlash adjustment mechanism for reduction gears adopted in electric

More information

Design Calculation and Verification using SIMPACK Wheel/Rail

Design Calculation and Verification using SIMPACK Wheel/Rail Design Calculation and Verification using SIMPACK Wheel/Rail Bombardier Transportation, Site Winterthur Business Unit Bogies Competent for Single Axle Running Gears Bogies for Regional Trains Bogies for

More information

Low-Impact Special Trackwork Research at Transportation Technology Center, Inc.

Low-Impact Special Trackwork Research at Transportation Technology Center, Inc. Low-Impact Special Trackwork Research at Transportation Technology Center, Inc. David D. Davis Transportation Technology Center, Inc 2009 TRB Annual Meeting - 1 Transportation Technology Center, Inc.,

More information

The Whispering Train Programme. The search for effective and cost neutral noise reduction measures for existing freight wagons.

The Whispering Train Programme. The search for effective and cost neutral noise reduction measures for existing freight wagons. The Whispering Train Programme The search for effective and cost neutral noise reduction measures for existing freight wagons. Ir. Jasper Peen & Ing. Wil van Roij, Lloyd s Register Rail, Utrecht, the Netherlands

More information

Sustainable Rail Strategy The Value of Quality

Sustainable Rail Strategy The Value of Quality Graz University of Technology Institute of Railway Engineering and Transport Economics Sustainable Rail Strategy The Value of Quality Peter Veit June 30 th, 2015 www.ebw.tugraz.at Challenge Graz, Austria

More information

Optimisation of Rolling Stock Wheelset Life through Better Understanding of Wheel Tyre Degradation

Optimisation of Rolling Stock Wheelset Life through Better Understanding of Wheel Tyre Degradation IJR International Journal of Railway Vol. 1, No. 3 / September 2008, pp. 83-88 The Korean Society for Railway Optimisation of Rolling Stock Wheelset Life through Better Understanding of Wheel Tyre Degradation

More information

CHAPTER 6 MECHANICAL SHOCK TESTS ON DIP-PCB ASSEMBLY

CHAPTER 6 MECHANICAL SHOCK TESTS ON DIP-PCB ASSEMBLY 135 CHAPTER 6 MECHANICAL SHOCK TESTS ON DIP-PCB ASSEMBLY 6.1 INTRODUCTION Shock is often defined as a rapid transfer of energy to a mechanical system, which results in a significant increase in the stress,

More information

Experimental investigation on vibration characteristics and frequency domain of heavy haul locomotives

Experimental investigation on vibration characteristics and frequency domain of heavy haul locomotives Journal of Advances in Vehicle Engineering 3(2) (2017) 81-87 www.jadve.com Experimental investigation on vibration characteristics and frequency domain of heavy haul locomotives Lirong Guo, Kaiyun Wang*,

More information

inter.noise 2000 The 29th International Congress and Exhibition on Noise Control Engineering August 2000, Nice, FRANCE

inter.noise 2000 The 29th International Congress and Exhibition on Noise Control Engineering August 2000, Nice, FRANCE Copyright SFA - InterNoise 2000 1 inter.noise 2000 The 29th International Congress and Exhibition on Noise Control Engineering 27-30 August 2000, Nice, FRANCE I-INCE Classification: 1.3 CURVE SQUEAL OF

More information

What is model validation? Overview about DynoTRAIN WP5. O. Polach Final Meeting Frankfurt am Main, September 27, 2013

What is model validation? Overview about DynoTRAIN WP5. O. Polach Final Meeting Frankfurt am Main, September 27, 2013 What is model validation? Overview about DynoTRAIN WP5 O. Polach Final Meeting Frankfurt am Main, September 27, 2013 Contents Introduction State-of-the-art on the railway dynamic modelling Suspension modelling

More information

The track-friendly high-speed bogie developed within Gröna Tåget

The track-friendly high-speed bogie developed within Gröna Tåget The track-friendly high-speed bogie developed within Gröna Tåget A. Orvnäs 1 (former 2), E. Andersson 2, S. Stichel 2, R. Persson 3 1 Mechanical Systems, Interfleet Technology 2 Division of Rail Vehicles,

More information

SPMM OUTLINE SPECIFICATION - SP20016 issue 2 WHAT IS THE SPMM 5000?

SPMM OUTLINE SPECIFICATION - SP20016 issue 2 WHAT IS THE SPMM 5000? SPMM 5000 OUTLINE SPECIFICATION - SP20016 issue 2 WHAT IS THE SPMM 5000? The Suspension Parameter Measuring Machine (SPMM) is designed to measure the quasi-static suspension characteristics that are important

More information

INFLUENCE OF SWITCHES AND CROSSINGS ON WHEEL PROFILE EVOLUTION IN FREIGHT VEHICLES

INFLUENCE OF SWITCHES AND CROSSINGS ON WHEEL PROFILE EVOLUTION IN FREIGHT VEHICLES INFLUENCE OF SWITCHES AND CROSSINGS ON WHEEL PROFILE EVOLUTION IN FREIGHT VEHICLES Abstract Carlos Casanueva, Emmanouil Doulgerakis, Per-Anders Jönsson, Sebastian Stichel Department of Aeronautical and

More information

Analysis and control of vehicle steering wheel angular vibrations

Analysis and control of vehicle steering wheel angular vibrations Analysis and control of vehicle steering wheel angular vibrations T. LANDREAU - V. GILLET Auto Chassis International Chassis Engineering Department Summary : The steering wheel vibration is analyzed through

More information

Research Brief. Simulation and verification of results from 125mph current collection modelling for two pantographs. T841 - January 2011.

Research Brief. Simulation and verification of results from 125mph current collection modelling for two pantographs. T841 - January 2011. Research Brief Simulation and verification of results from 125mph current collection modelling for two pantographs Overview On behalf of the Vehicle / Train Energy System Interface Committee (V/TE SIC),

More information

REDUCING THE OCCURRENCES AND IMPACT OF FREIGHT TRAIN DERAILMENTS

REDUCING THE OCCURRENCES AND IMPACT OF FREIGHT TRAIN DERAILMENTS REDUCING THE OCCURRENCES AND IMPACT OF FREIGHT TRAIN DERAILMENTS D-Rail Final Workshop 12 th November - Stockholm Monitoring and supervision concepts and techniques for derailments investigation Antonella

More information

UPDATE OF TTCI S RESEARCH IN TRACK CONDITION TESTING AND INSPECTION. Dingqing Li, Randy Thompson, and Semih Kalay

UPDATE OF TTCI S RESEARCH IN TRACK CONDITION TESTING AND INSPECTION. Dingqing Li, Randy Thompson, and Semih Kalay Dingqing Li 1 UPDATE OF TTCI S RESEARCH IN TRACK CONDITION TESTING AND INSPECTION Dingqing Li, Randy Thompson, and Semih Kalay Transportation Technology Center, Inc. Pueblo, CO 81001 Phone: (719) 584-0740,

More information

Journal of Mechanical Systems for Transportation and Logistics

Journal of Mechanical Systems for Transportation and Logistics A Potential of Rail Vehicle Having Bolster with Side Bearers for Improving Curving Performance on Sharp Curves Employing Link-Type Forced Steering Mechanism* Katsuya TANIFUJI **, Naoki YAEGASHI ** and

More information

SIMPACK User Meeting May 2011 in Salzburg

SIMPACK User Meeting May 2011 in Salzburg Modular vehicle concept modular model design reliable calculation chain Dynamic analysis of the Avenio platform with multi-body simulation (MBS) Page 1 May 2011 Structure Presentation of Avenio tram platform

More information

SIMPACK User Meeting. Dr Ahmed Al-Sened Chief R&D Manager. MAN B&W Diesel Ltd Stockport, UK November 2004

SIMPACK User Meeting. Dr Ahmed Al-Sened Chief R&D Manager. MAN B&W Diesel Ltd Stockport, UK November 2004 Multi-Body Dynamics Simulation on MAN RK280 SIMPACK User Meeting Presentation by Dr Ahmed Al-Sened Chief R&D Manager MAN B&W Diesel Ltd Stockport, UK November 2004 RK280 the most powerful 1000rpm engine

More information

Sport Shieldz Skull Cap Evaluation EBB 4/22/2016

Sport Shieldz Skull Cap Evaluation EBB 4/22/2016 Summary A single sample of the Sport Shieldz Skull Cap was tested to determine what additional protective benefit might result from wearing it under a current motorcycle helmet. A series of impacts were

More information

Freight Bogie Design Measures to Improve the Lifetime Performance of Switches and Curves

Freight Bogie Design Measures to Improve the Lifetime Performance of Switches and Curves Paper 125 Civil-Comp Press, 216 Proceedings of the Third International Conference on Railway Technology: Research, Development and Maintenance, J. Pombo, (Editor), Civil-Comp Press, Stirlingshire, Scotland.

More information

Testing criteria for non-ballasted track and embedded track systems

Testing criteria for non-ballasted track and embedded track systems Testing criteria for non-ballasted track and embedded track systems ABSTRACT André Van Leuven Dynamic Engineering St Louis, MO The EC co funded research project Urban Track aims at reducing the total life

More information

Railway Track Superstructure Research at Tampere University of Technology, Finland

Railway Track Superstructure Research at Tampere University of Technology, Finland Railway Track Superstructure Research at Tampere University of Technology, Finland Hay Seminar UIUC 28 September 2018 Tiia Loponen Riku Varis Riku Varis Education Employments PhD student, Railway Structures,

More information

Optimization of Seat Displacement and Settling Time of Quarter Car Model Vehicle Dynamic System Subjected to Speed Bump

Optimization of Seat Displacement and Settling Time of Quarter Car Model Vehicle Dynamic System Subjected to Speed Bump Research Article International Journal of Current Engineering and Technology E-ISSN 2277 4106, P-ISSN 2347-5161 2014 INPRESSCO, All Rights Reserved Available at http://inpressco.com/category/ijcet Optimization

More information

KINEMATICAL SUSPENSION OPTIMIZATION USING DESIGN OF EXPERIMENT METHOD

KINEMATICAL SUSPENSION OPTIMIZATION USING DESIGN OF EXPERIMENT METHOD Jurnal Mekanikal June 2014, No 37, 16-25 KINEMATICAL SUSPENSION OPTIMIZATION USING DESIGN OF EXPERIMENT METHOD Mohd Awaluddin A Rahman and Afandi Dzakaria Faculty of Mechanical Engineering, Universiti

More information

WHY RAILS CRACK ISSUE 23 JUNE

WHY RAILS CRACK ISSUE 23 JUNE WEALTH CREATION FEATURE WHY RAILS CRACK Metal fatigue in rails was recently highlighted as the likely cause of the Hatfield train crash. Four key members of the international research group WRISA reveal

More information

Optimisation of Rolling Stock Wheelset Life through Better Understanding of Wheel Tyre Degradation

Optimisation of Rolling Stock Wheelset Life through Better Understanding of Wheel Tyre Degradation Optimisation of Rolling Stock Wheelset Life through Better Understanding of Wheel Tyre Degradation 1 I. Vermeij, 1 T. Bontekoe, 1 G. Liefting, 1 J. Peen Lloyd s Register Rail Europe, Utrecht, The Netherlands

More information

ROBUST PROJECT Norwegian Public Roads Administration / Force Technology Norway AS

ROBUST PROJECT Norwegian Public Roads Administration / Force Technology Norway AS ROBUST PROJECT Norwegian Public Roads Administration / Force Technology Norway AS Evaluation of small car - RM_R1 - prepared by Politecnico di Milano Volume 1 of 1 January 2006 Doc. No.: ROBUST-5-002/TR-2004-0039

More information

New measuring track curve in Wegberg-Wildenrath test and validation centre

New measuring track curve in Wegberg-Wildenrath test and validation centre APPLICATION REPORT from: EI Eisenbahningenieur, edition 9, September 2009 New measuring track curve in Wegberg-Wildenrath test and validation centre APPLICATION REPORT New REFERENZBERICHT measuring track

More information

Research Article Stiffness Characteristics of High-Speed Railway Turnout and the Effect on the Dynamic Train-Turnout Interaction

Research Article Stiffness Characteristics of High-Speed Railway Turnout and the Effect on the Dynamic Train-Turnout Interaction Shock and Vibration Volume 216, Article ID 1258681, 14 pages http://dx.doi.org/1.1155/216/1258681 Research Article Stiffness Characteristics of High-Speed Railway Turnout and the Effect on the Dynamic

More information

THE INFLUENCE OF VISIBILITY CONDITIONS IN HORIZONTAL ROAD CURVES ON THE EFFICIENCY OF NOISE PROTECTION BARRIERS

THE INFLUENCE OF VISIBILITY CONDITIONS IN HORIZONTAL ROAD CURVES ON THE EFFICIENCY OF NOISE PROTECTION BARRIERS DOI: 10.1515/rjti-2015-0016 ROMANIAN JOURNAL THE INFLUENCE OF VISIBILITY CONDITIONS IN HORIZONTAL ROAD CURVES ON THE EFFICIENCY OF NOISE PROTECTION BARRIERS Tamara Džambas, Assistant, MCE, University of

More information

BART Wheel Profile Change

BART Wheel Profile Change BART Wheel Profile Change Cylindrical to Modified Tapered Ben Holland, P.E., Manager Vehicle Systems Engineering Rolling Stock & Shops Gregory Shivy Principal Track Engineer Maintenance & Engineering 1

More information

SPMM OUTLINE SPECIFICATION - SP20016 issue 2 WHAT IS THE SPMM 5000?

SPMM OUTLINE SPECIFICATION - SP20016 issue 2 WHAT IS THE SPMM 5000? SPMM 5000 OUTLINE SPECIFICATION - SP20016 issue 2 WHAT IS THE SPMM 5000? The Suspension Parameter Measuring Machine (SPMM) is designed to measure the quasi-static suspension characteristics that are important

More information

Freight Gauge Nuances. Presented by Martin Osman 4 th November 2015

Freight Gauge Nuances. Presented by Martin Osman 4 th November 2015 Freight Gauge Nuances Presented by Martin Osman 4 th November 2015 Introduction What s new in the field of freight gauging? Established or Benchmark suspension Standard Vehicle Gauge Data sheets (SVGD)

More information

Design of Damping Base and Dynamic Analysis of Whole Vehicle Transportation based on Filtered White-Noise GongXue Zhang1,a and Ning Chen2,b,*

Design of Damping Base and Dynamic Analysis of Whole Vehicle Transportation based on Filtered White-Noise GongXue Zhang1,a and Ning Chen2,b,* Advances in Engineering Research (AER), volume 07 Global Conference on Mechanics and Civil Engineering (GCMCE 07) Design of Damping Base and Dynamic Analysis of Whole Vehicle Transportation based on Filtered

More information

Experimental Investigation of Effects of Shock Absorber Mounting Angle on Damping Characterstics

Experimental Investigation of Effects of Shock Absorber Mounting Angle on Damping Characterstics Experimental Investigation of Effects of Shock Absorber Mounting Angle on Damping Characterstics Tanmay P. Dobhada Tushar S. Dhaspatil Prof. S S Hirmukhe Mauli P. Khapale Abstract: A shock absorber is

More information

DAVINCH Lite Chamber Design By Analysis and Full-Scale Testing CWD 2014 London, United Kingdom June 4-6, 2014

DAVINCH Lite Chamber Design By Analysis and Full-Scale Testing CWD 2014 London, United Kingdom June 4-6, 2014 DAVINCH Lite Chamber Design By Analysis and Full-Scale Testing CWD 2014 London, United Kingdom June 4-6, 2014 Robert E. Nickell, Consultant, San Diego, CA, USA Takao Shirakura, Transnuclear, Ltd., Tokyo,

More information

inter.noise 2000 The 29th International Congress and Exhibition on Noise Control Engineering August 2000, Nice, FRANCE

inter.noise 2000 The 29th International Congress and Exhibition on Noise Control Engineering August 2000, Nice, FRANCE Copyright SFA - InterNoise 2000 1 inter.noise 2000 The 29th International Congress and Exhibition on Noise Control Engineering 27-30 August 2000, Nice, FRANCE I-INCE Classification: 1.3 SILENT FREIGHT

More information

Special edition paper

Special edition paper Efforts for Greater Ride Comfort Koji Asano* Yasushi Kajitani* Aiming to improve of ride comfort, we have worked to overcome issues increasing Shinkansen speed including control of vertical and lateral

More information

Influence of Parameter Variations on System Identification of Full Car Model

Influence of Parameter Variations on System Identification of Full Car Model Influence of Parameter Variations on System Identification of Full Car Model Fengchun Sun, an Cui Abstract The car model is used extensively in the system identification of a vehicle suspension system

More information

Port of Vancouver Schedule 1 Rail Engineering, Operations, and Safety Review Final Report Prepared for: HDR

Port of Vancouver Schedule 1 Rail Engineering, Operations, and Safety Review Final Report Prepared for: HDR Port of Vancouver Schedule 1 Rail Engineering, Operations, and Safety Review Final Report Prepared for: HDR Prepared by: TÜV Rheinland Mobility Rail Sciences Division March 25, 2014 1 Who We are TUV Rheinland

More information

Effects of Buffer Friction on the Vehicle Behavior in Switch Series

Effects of Buffer Friction on the Vehicle Behavior in Switch Series Effects of Buffer Friction on the Vehicle Behavior in Switch Series Dipl.-Ing. Claudia Kossmann Stadler Altenrhein AG (Switzerland) Dipl.-Ing. Karl Tillmetz Stadler Bussnang AG (Switzerland) SIMPACK User

More information

New Concept for Higher Speed on Existing Catenary System: Auxiliary Pantograph Operation

New Concept for Higher Speed on Existing Catenary System: Auxiliary Pantograph Operation New Concept for Higher Speed on Existing Catenary System: Auxiliary Pantograph Operation Zhendong Liu, Sebastian Stichel, Per-Anders Jönsson KTH Royal Institute of Technology, Sweden Anders Rønnquist NTNU

More information

Procedia Engineering 00 (2009) Mountain bike wheel endurance testing and modeling. Robin C. Redfield a,*, Cory Sutela b

Procedia Engineering 00 (2009) Mountain bike wheel endurance testing and modeling. Robin C. Redfield a,*, Cory Sutela b Procedia Engineering (29) Procedia Engineering www.elsevier.com/locate/procedia 9 th Conference of the International Sports Engineering Association (ISEA) Mountain bike wheel endurance testing and modeling

More information

A study on the evaluation method of the characteristics of the contact point between wheel and rail

A study on the evaluation method of the characteristics of the contact point between wheel and rail Computers in Railways XI 73 A study on the evaluation method of the characteristics of the contact point between wheel and rail M. Adachi 1 & T. Shimomura 2 1 National Traffic Safety and Environment Laboratory,

More information

Railway Dynamics Studies at CITEF with SIMPACK

Railway Dynamics Studies at CITEF with SIMPACK 2003 Railway Dynamics Studies at CITEF with SIMPACK Jenny Paulin citef.jpaulin@etsii.upm.es Berta Suárez citef.bsuarez@etsii.upm.es CITEF UPM Centro de Investigación en Tecnologías Ferroviarias Universidad

More information

Safety factor and fatigue life effective design measures

Safety factor and fatigue life effective design measures Safety factor and fatigue life effective design measures Many catastrophic failures have resulted from underestimation of design safety and/or fatigue of structures. Failure examples of engineered structures

More information

Multi-Body Simulation of Powertrain Acoustics in the Full Vehicle Development

Multi-Body Simulation of Powertrain Acoustics in the Full Vehicle Development Page 1 Multi-Body Simulation of Powertrain Acoustics in the Full Vehicle Development SIMPACK User Meeting 2011 Alexander Schmid, IABG mbh Andreas Raith, BMW Group Salzburg, Page 2 Powertrain Acoustics

More information

Full Scale Experimental Evaluation for Cable Dampers

Full Scale Experimental Evaluation for Cable Dampers Full Scale Experimental Evaluation for Cable Dampers Liang Dong, Tian Jingxian, Du Chuang, Ma Jinlong Abstract One of the key techniques for building long span cable-stayed bridge is the mitigation of

More information

Active Suspensions For Tracked Vehicles

Active Suspensions For Tracked Vehicles Active Suspensions For Tracked Vehicles Y.G.Srinivasa, P. V. Manivannan 1, Rajesh K 2 and Sanjay goyal 2 Precision Engineering and Instrumentation Lab Indian Institute of Technology Madras Chennai 1 PEIL

More information

Optimisation of the railway

Optimisation of the railway oo G) 65 Fl N 0 m.! O >= h IH h :CB m Optimisation of the railway alignment considering vehicle reactions Paper presented at the International seminars on infrastructure and vehicle/ infrastructure interaction,

More information

Comparing FEM Transfer Matrix Simulated Compressor Plenum Pressure Pulsations to Measured Pressure Pulsations and to CFD Results

Comparing FEM Transfer Matrix Simulated Compressor Plenum Pressure Pulsations to Measured Pressure Pulsations and to CFD Results Purdue University Purdue e-pubs International Compressor Engineering Conference School of Mechanical Engineering 2012 Comparing FEM Transfer Matrix Simulated Compressor Plenum Pressure Pulsations to Measured

More information

Modification of IPG Driver for Road Robustness Applications

Modification of IPG Driver for Road Robustness Applications Modification of IPG Driver for Road Robustness Applications Alexander Shawyer (BEng, MSc) Alex Bean (BEng, CEng. IMechE) SCS Analysis & Virtual Tools, Braking Development Jaguar Land Rover Introduction

More information

ME 466 PERFORMANCE OF ROAD VEHICLES 2016 Spring Homework 3 Assigned on Due date:

ME 466 PERFORMANCE OF ROAD VEHICLES 2016 Spring Homework 3 Assigned on Due date: PROBLEM 1 For the vehicle with the attached specifications and road test results a) Draw the tractive effort [N] versus velocity [kph] for each gear on the same plot. b) Draw the variation of total resistance

More information

A study on the vibration analysis of a maglev vehicle A theoretical investigation of the effect of magnetic damping on a vibration control system

A study on the vibration analysis of a maglev vehicle A theoretical investigation of the effect of magnetic damping on a vibration control system International Journal of Applied Electromagnetics and Mechanics 13 (2001/2002) 79 83 79 IOS Press A study on the vibration analysis of a maglev vehicle A theoretical investigation of the effect of magnetic

More information

A STUDY OF THE CENTRIFUGAL COMPRESSOR DISCHARGE PIPELINE CONSTRAINED OSCILLATION. KIRILL SOLODYANKIN*, JIŘÍ BĚHAL ČKD KOMPRESORY, a.s.

A STUDY OF THE CENTRIFUGAL COMPRESSOR DISCHARGE PIPELINE CONSTRAINED OSCILLATION. KIRILL SOLODYANKIN*, JIŘÍ BĚHAL ČKD KOMPRESORY, a.s. A STUDY OF THE CENTRIFUGAL COMPRESSOR DISCHARGE PIPELINE CONSTRAINED OSCILLATION KIRILL SOLODYANKIN*, JIŘÍ BĚHAL ČKD KOMPRESORY, a.s. Abstract: The paper presents a solution of a pipeline constrained oscillation

More information

Extracting Tire Model Parameters From Test Data

Extracting Tire Model Parameters From Test Data WP# 2001-4 Extracting Tire Model Parameters From Test Data Wesley D. Grimes, P.E. Eric Hunter Collision Engineering Associates, Inc ABSTRACT Computer models used to study crashes require data describing

More information

DEFECTS OF FREIGHT LOCOMOTIVE WHEELS AND MEASURES OF WHEEL TYRE LIFE EXTENTION

DEFECTS OF FREIGHT LOCOMOTIVE WHEELS AND MEASURES OF WHEEL TYRE LIFE EXTENTION DEFECTS OF FREIGHT LOCOMOTIVE WHEELS AND MEASURES OF WHEEL TYRE LIFE EXTENTION Sergey M. Zakharov Prof., Dr.Tech,Sci., JSC Railway Research Institute (), Moscow, Russia Ilya A. Zharov Cand. Tech. Sci.

More information

Comparative Study on Super Structure of Box Girder Bridge and Cable Stayedbridge with Extra Dosed Bridge

Comparative Study on Super Structure of Box Girder Bridge and Cable Stayedbridge with Extra Dosed Bridge International Journal of Engineering Science Invention (IJESI) ISSN (Online): 2319 6734, ISSN (Print): 2319 6726 Volume 7 Issue 5 Ver. II May 2018 PP 21-26 Comparative Study on Super Structure of Box Girder

More information

Dynamic Simulation of Vehicle Suspension Systems for Durability Analysis

Dynamic Simulation of Vehicle Suspension Systems for Durability Analysis Dynamic Simulation of Vehicle Suspension Systems for Durability Analysis Levesley, M.C. 1, Kember S.A. 2, Barton, D.C. 3, Brooks, P.C. 4, Querin, O.M 5 1,2,3,4,5 School of Mechanical Engineering, University

More information

Permissible Track Forces for Railway Vehicles

Permissible Track Forces for Railway Vehicles British Railways Board Page 1 of 11 Part A Synopsis This document prescribes design and maintenance requirements for traction and rolling stock and for on track plant to ensure that interactive forces

More information

ENERGY RECOVERY SYSTEM FROM THE VEHICLE DAMPERS AND THE INFLUENCE OF THE TANK PRESSURE

ENERGY RECOVERY SYSTEM FROM THE VEHICLE DAMPERS AND THE INFLUENCE OF THE TANK PRESSURE The 3rd International Conference on Computational Mechanics and Virtual Engineering COMEC 2009 29 30 OCTOBER 2009, Brasov, Romania ENERGY RECOVERY SYSTEM FROM THE VEHICLE DAMPERS AND THE INFLUENCE OF THE

More information

ANALYSIS OF GEAR QUALITY CRITERIA AND PERFORMANCE OF CURVED FACE WIDTH SPUR GEARS

ANALYSIS OF GEAR QUALITY CRITERIA AND PERFORMANCE OF CURVED FACE WIDTH SPUR GEARS 8 FASCICLE VIII, 8 (XIV), ISSN 11-459 Paper presented at Bucharest, Romania ANALYSIS OF GEAR QUALITY CRITERIA AND PERFORMANCE OF CURVED FACE WIDTH SPUR GEARS Laurentia ANDREI 1), Gabriel ANDREI 1) T, Douglas

More information