The State of the Latest. Leads High-Speed Railway System. Masahito, ADACHI Group Leader, JR Central, Japan 12 th July, Session: System Optimization

Transcription

1 The State of the Latest Technological Development that Leads High-Speed Railway System

2 Part 1 Railway system Contents Part 2 Technology R&D Department (Komaki) Part 3 Recent Technological Developments Part 4 Conclusions 2

3 What is Railway system? Totally Integrated System Hardware Software - Rolling stock - Ground facilities and tracks - Safety promotion structure - Signal system ATC - Employee education and aptitude (onboard and ground facilities) - Disaster prevention facilities - Protective facilities - Maintenance - Operation management 3

4 Technology R&D Department (Komaki) Enhancing transport service Expanding technological capabilities Full-scale tests Analysis of data of running tests Simulations Opened in July 2002 Site area: Approx. 73ha Area Use area: Approx. 20ha Employees R & D: Approx. 120 Planning : Approx. 30 4

5 Technology R&D Department (Komaki) Real Scale Test Structure The Facilities in Building A Track & Structural 移動式載荷試験車 Dynamics Simulator Test Facilities in Building B Test Track Test Facilities in Building C 5

6 Pursuit of comfortable ride quality Vehicle Dynamic Simulator Exactly same cabin as the series N700 Centrifugal force a passenger feels Improving riding quality further 6 Cant Centrifugal force in curve sections

7 Noise-reduction technologies Low-Noise Wind Tunnel Ex. Noise source identification Series 700 Series N700 1/20 Scale Model Lower noise levels of Series N700 7

8 Seismic retrofit (Strengthening of structure in practical use) Steel jacketing around columns (Standard) Damage of Railway Structures(Tokaido Shinkansen) (In practical use) Steel jacketing New seismic retrofitting methods for viaduct Damper braces (In practical use) Steel jacketing using divided steel plates (In practical use) 8

9 Anti-Derailing Guard Rails Measures for Derailment Full-scale test of shaking table Anti-Derailing Guard Rails (during operation) Large excitation Effective measure to Rocking derailment Wheel Wheel Guard Rails Turned over rails for track maintenance work Rail 9 Rail

10 Measure for Post Derailment Effectiveness of Postderailment stopper Wheel path Guard contacted with the stopper Wheel path Test vehicle No.1 No.1 wheel 車輪上下変位 vertical disp.(mm) Amplitude of the vertical displacement (mm) Verification by simulations Measurement and Simulation calculation measurement No.1 wheel 車輪の進行方向位置 longitudinal position(m) Prediction at high-speeds Average vehicle speed (km/h) No.1 wheel (zw1) Bogie fraeme (zt) a1*θt z t a 1 θ t z w Vehicle 車両速度 Speed(km/h)

11 Securing even safer and more reliable operation Rolling Stock Field Test Simulator Reproduction of running conditions in the actual lines Rigid structure Longitudinal damper - Re-create reaction from coupled car rail level Actuator - Re-create aerodynamic force Large excitation roller coupler Actuator - roller Re-create track condition rail roughness irregularity Vibration test on roller rigs Wheel Confirmation of Derailment mechanism Comparison with tests on shaking table and simulations Anti-derailing Guard rail Rail (roller rig) 11

12 Conclusions Promoting Technological Development at the Komaki Research Center further strengthen safety and reliability. Recent Technological Developments are as follows Development of the series N700 and its improvement Advanced Maintenance of Structures Countermeasures to Prevent Derailment and Deviation for the Tokaido Shinkansen JRCentral continuously strives to develop cutting-edge technology and technology that contributes to cost reduction. 12

13 ...Thank you...thank you for your kind attention