Worm gear meshing stiffness calculations based on experiments
|
|
- Ada Clarke
- 6 years ago
- Views:
Transcription
1 Worm gear meshing stiffness calculations based on experiments X. Wang & L. Morrish School of Computing and Engineering, Hudders-eld University, UK. Abstract Meshing stiffness is an important factor used in modelling of gear transmission errors (TE) and wear, as load sharing has to be taken into account. However, as far as the authors are aware, there is no published information that can be used to calculate tooth stiffness for a particular worm gear pair. This paper presents a method for calculating worm gear meshmg stiffness based on experimental measurements. The resulting stiffness value compare reasonably well with the estimations htherto made by analogy with spurlhelical gears. 1 Introduction Worm gears are widely used in various industrial and every day life applications because of their compactness, high precision, smoothness in operation. However, worm gears efficiency and wear resistance are normally lower than these of other types of gears of similar size, due to high sliding inherently present in worm gear contact. Research into worm gear wear is going on worldwide, which is mainly experimental (Hoehn [l], Octrue [2], Octrue [3], Houser [4], Wang [5]). Based on the experimental results, a method for overall worm gear wear estimation has been developed within the DIN 3996 and IS0 [6] standards. However, there is a need for modelling of progressive wear. This will enable predictions of progressive changes of gear geometry of given design, as well as
2 372 Laser Metrology und Muchiize Performance VI predictions of gears life length. The model will take into account different meshing conditions (e.g. loads, materials, oils etc.), Egorov [7], Wang [S]. Load sharing is an important factor whch influences wear distribution on tooth surface of worm gears. It has to be taken into account in wear calculations, and the value of tooth stiffness is required to do so. As far as the authors are aware, there is no published information on how tooth stiffness for worm gears can be calculated, so an estimate has to be made. It seems reasonable to base this estimate on similar stiffness values for spurhelical gears, using one of the available methods (e.g. IS0 [9], Munro [10], Weber [l l], Steward [12]) and this is the approach used by Fish [13]. This paper presents a method for calculating worm gear meshng stiffness, which is believed to be the first publication on ths subject. It is based on experimental measurements made on the worm gear test rig at Huddersfield. The resulting stiffness value is compared with the estimation made by Fish [13]. 2 Test rig and test gears The test rig used for this research is described in detail in Fish [13]-[15]. It provides means for running worm gears under loads ranging from zero up to 2000 Nm, applied via hydraulic brake, and at speeds ranging from 100 up to 200 rpm. Two Heidenhain encoders are fitted on the worm and wheel shafts respectively. Their readings are processed by a GFM GP36 computer system to continuously monitor the gear transmission error (TE). Details of the worm and wheel used in the tests are as follows: Module Number of worm starts Number of teeth Pressure angle Worm reference diameter Reference circle diameter of wheel Centre distance Contact ratio Face width of wheel 3 Measurements description Table 1 lists parameters of the test gearbox and transmission parameters measured during the tests. Figure 1 shows positions of encoders and probes used for these measurements.
3 Laser Metrology and Machine Performance VI 373 Table 1 : List of measured parameters. I I I Measured bv I Notation 0 lwm 9:' yl X2 X3 X4 X5 Description input (worm) shaft angular position Subscript i in Table 1 denotes the measurement number made at different worm positions. The procedure of measurements is as follows. Initially, worm is positioned as convenient, and its shaft angular position is taken as a datum (erm= 0). Then the worm shaft is rotated manually and its position is registered. Corresponding angular positions of the wheel and probes readings are also recorded. encoder 1 encoder 2 - output (wheel) shaft angular position worm deflection axial worm shaft movement worm structure movement relative to ground wheel box top part movement relative to ground wheel deflection Probes (see Figure i) encoder 1 encoder 2 probe 1 probe 2 probe 3 probe 4 probe 5 O - O Figure 1 : Encoders and probes positions on the test gear box.
4 374 Laser Metrology und Muchiize Performance VI The procedure is repeated twice, first under no load (when no deflections occur), and then under some known heavy (750Nm) load (load is applied by mounting a lever arm to the coupling of the output shaft, in horizontal position, with known weights attached to it). Two sets of output shaft angular positions, f3,wio and g,":,,,, are recorded. Gear box parts movements and worm and wheel shafts deflections under load have to be taken into account in calculation. These are measured using probes 1-5. The readings of probes 1, 3-5 hardly change at different worn1 positions; they are given in Table 2. Table 2: Readings of the probes under 750Nm. I Probes I 1 l 3 I 4 l 5 I symbol Readings (pm) 4.5 X X4-7.0 Xj -3.0 Readings of the probe 2 (axial worm movement), as well as angular positions of the worm and wheel shafts measured by encoders 1 and 2, are given in Table 3. position No Table 3 : Measured parameters. Worm angle 8Ym (Degree) Wheel angle (Preload) 'i wl no load (Degree) Wheel Axial worm angle movement 1 (75ONm) I e,w:,ac, X, 2 (Degree) (pm) Measured data from Tables 2 and 3 are used in further theoretical analysis.
5 Laser Metrology and Machine Performance VI 375 The accuracy of measurements recorded when the input shaft is rotated incrementally and manually has to be proved. This is done by measuring TE when the shaft is rotated uniformly by a motor, and comparing the measured TE with that calculated using the data in Table 3. TE can be calculated as follows. In the case of zero load: TE = In the case when load (750Nm) is applied: TE = Here: u - transmission ratio (50) - initial wheel shaft angular position ( O) (All angles in eqns (1) and (2) are in degrees). TE calculated using formulae (1) and (2) are plotted in Figures 2a and 3a respectively. Measured TE under no load and 750 Nm load are given in Figures 2b and 3b. A comparison of measured and calculated TE shows that manual measurements used for the principle stiffness calculations are sound. 4 Calculation of tooth deflection and meshing stiffness 4.1 Tooth deflection Wheel tooth deflection, A:, worm position i as follows: under 750 Nm load can be calculated for every Here: r, - reference radius of wheel G,- - gap increase due to deflection of worm shaft at middle section, Y,, and radial movement of wheel in vertical direction, ywh. G,"" and ywh can be calculated:
6 376 Laser Metrology und Muchiize Performance VI 1 TE (no load)... l l ' Angle of worm rotatlon h Zoom of Commsite Transmission Errors I FR 03/27/82 11:28: ! B10.@l5.B20 Revolutions (DriuL*l Gear) F'1 = 8.9 um l - 1 I - Figure 2: Transmission error under no load, (a) - worm shaft is rotated manually, (b) - worm shaft is rotated by a motor. Glwm =(l; +ywh)tana= 1; +- 3 tann Here: a - pressure angle P - radial load (P = N) k - radial stiffness of wheel bearings (two bearings are assumed to have the same stiffness, k =l640 Nlpm). Radial load, P, is found from the known applied load, 750 Nm, and gear geometry. The value for wheel bearing stiffness has been evaluated by Fish 1131.
7 Laser Metrology alzd Machine Performance VI 377 Angle of worm rotatlon l l a Zoom of Composite Transmission Errors FR 63/27/92 14:54: T Revolutions (Dr~uerf Gear) 4.4 urn l I I - Figure 3 : Transmission error under 750Nm load, (c) - worm shaft is rotated manually, (d) - worm shaft is rotated by a motor. Calculated wheel tooth deflection, A: ; under 750 Nm load is plotted in Figure 4. Slight changes occur with worm rotation due to various factors, e.g. load sharing and the specific geometry of teeth contacting area. The average tooth deflection is 23 microns. 4.2 Meshing stiffness Meshing stiffness can be calculated as:
8 378 Laser Metrology und Muchiize Performance VI j 26 l I Tooth deflection (750Nm) Angle of worn rotation Figure 4: Tooth deflection under 750 Nm. Here: T, - applied load (T, =750 Nm) b - wheel facewidth (b = mm) - A - mean tooth deflection Mean tooth deflection can be calculated using eqn (7): It is found (section 4.1) to be = 23.0 pm. From eqn (6), meshing stiffness is found to be 7.3 N/mm/p. This figure is very similar to 5.9 Nlmmlp originally used by Fish, [13], which was based on experience and analogy with spur gears Munro [10], and therefore proves that the method presented is sound. However, more investigations are desirable to provide further verification. Ths will be achieved from future research, by modelling, implementing tests and possibly by the use of FEA. 5 Conclusions Meshing stiffness of a particular worm gear pair has been calculated using test box deflection measurements and theoretical considerations. The results are qualitatively reasonable. They do not conflict with previous estimates produced (Fish 1131). However, further verification is required. Acknowledgements The authors would llke to thank for financial support and in-kind assistance:
9 Laser Metrology and Machine Performance VI 379 Engineering and Physical Sciences Research Council, DSTL British Gear Association, Holroyd Machine Tool, Rotors, & Precision Gears Ltd., Renold Gears Ltd., David Brown Ltd., The University of Huddersfield References Hoehn, B.-R., Neupert, K. & Steingroever, K. "Wear Load Capacity and Efficiency of Worm Gears", VD1 Berichte, No. 1230, pp , Octrue, M. "Relationshp between wear and pitting phenomena in worm gears". American Gear Manufacturers Association, paper 97FTM9, Octrue, M., "Evolution des methodes de calcul de la capacite de charge des engrenages a r'oue et vis tangentes pression et usure", 4th World Congress on Gearing and Power Transmission, Paris, France, 1, pp , Houser, D. R., Su, X. & Vaishya, M. "Effects of wear on the meshing contact of worm gearing", AGMA 99FTM18,1999. Wang, X. & Morrish, L. "Transmission error and wear measurement of involute helicoidal worm gears", IFToMM, Int. J. of Gear and Transmissions, 3, pp ,2001. ISOITC 60lSC 11GT 7N 201, "Load capacity calculation of worm gears", 2001 (Preparatory). Egorov, I.M. & Morrish, L. "Digital Approach For The Solution Of Gearing Problems", the paper accepter for presentation at the Power Transmission and Gearing conference, USA, Wang, X. & Morrish, L. "Predictions of Wear and Transmission Errors of Cylindrical Worm Gears", the paper accepter for presentation at the Power Transmission and Gearing conference, USA, IS , ISOITC-60,-"~alculation of load capacity of spur and helical gears", Part 1, 14'~ April [l01 Munro, R.G., Palmer, D. & Morrish, L. "An experimental method to measure gear tooth stiffness through and beyond path of contact", proceeding of IMechE, part C, Vol. 215, pp ,2001. [l l] Weber, C. Sponsored research (Germany), DSIR London, Report 3, [l21 Steward, J.H. "The compliance of solid, wide-faced spur gears". Trans. ASME, J. Mech. Des, 112, pp , [l31 Fish, M. "Transmission errors in precision worm gear drives", PhD thesis, University of Huddersfield, [l41 Fish, M. & Munro, R. G. "Analysis of Marking Patterns and Transmission Errors in Worm Gears", Annual Congress of British Gear Association, [l51 Fish, M. & Munro, R. G. "Kinematic Errors in Precision Worm Gears", LAMDAMAP Conference, pp , 1997.
10
o f Tip Relief on Transmission
E v a l u a t i o n o f M e t h o d s f o r C a l c u l a t i n g E f f e c t s o f Tip Relief on Transmission E r r o r, N o i s e a n d S t r e s s i n L o a d e d S p u r G e a r s Dr. David Palmer
More informationANALYSIS 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 informationVerifying the accuracy of involute gear measuring machines R.C. Frazer and J. Hu Design Unit, Stephenson Building, University ofnewcastle upon Tyne,
Verifying the accuracy of involute gear measuring machines R.C. Frazer and J. Hu Design Unit, Stephenson Building, University ofnewcastle upon Tyne, Abstract This paper describes the most common methods
More informationCASE STUDY OF ASSEMBLY ERRORS INFLUENCE ON STRESS DISTRIBUTION IN SPUR GEAR TRAIN
Proceedings of the 7th International Conference on Mechanics and Materials in Design Albufeira/Portugal 11-15 June 2017. Editors J.F. Silva Gomes and S.A. Meguid. Publ. INEGI/FEUP (2017) PAPER REF: 6564
More informationScienceDirect A NEW EXPERIMENTAL APPROACH TO TEST OPEN GEARS FOR WINCH DRUMS
Available online at www.sciencedirect.com ScienceDirect Procedia Engineering 133 (2015 ) 192 201 6th Fatigue Design conference, Fatigue Design 2015 A NEW EXPERIMENTAL APPROACH TO TEST OPEN GEARS FOR WINCH
More informationA Method to Define Profile Modification of Spur Gear and Minimize the Transmission Error
A Method to Define Profile Modification of Spur Gear and Minimize the Transmission Error Authors: Marco Beghini Fabio Presicce Ciro Santus Collaboration between: Mech. Dept. University of Pisa - Italy
More informationThe Gear Whine Noise: the influence of manufacturing process on vibro-acoustic emission of gear-box
The Gear Whine Noise: the influence of manufacturing process on vibro-acoustic emission of gear-box Niola V., Quaremba G. Department of Mechanical and Energetics University of Naples Federico II Via Claudio
More informationANALYSIS OF SURFACE CONTACT STRESS FOR A SPUR GEAR OF MATERIAL STEEL 15NI2CR1MO28
ANALYSIS OF SURFACE CONTACT STRESS FOR A SPUR GEAR OF MATERIAL STEEL 15NI2CR1MO28 D. S. Balaji, S. Prabhakaran and J. Harish Kumar Department of Mechanical Engineering, Chennai, India E-Mail: balajimailer@gmail.com
More information1874. Effect predictions of star pinion geometry phase adjustments on dynamic load sharing behaviors of differential face gear trains
1874. Effect predictions of star pinion geometry phase adjustments on dynamic load sharing behaviors of differential face gear trains Zhengminqing Li 1, Wei Ye 2, Linlin Zhang 3, Rupeng Zhu 4 Nanjing University
More informationThe Geometry of Involute Gears
The Geometry of Involute Gears J.R. Colbourne The Geometry of Involute Gears With 217 Illustrations Springer-Verlag New York Berlin Heidelberg London Paris Tokyo J.R. Colbourne Department of Mechanical
More informationTransmission Error in Screw Compressor Rotors
Purdue University Purdue e-pubs International Compressor Engineering Conference School of Mechanical Engineering 2008 Transmission Error in Screw Compressor Rotors Jack Sauls Trane Follow this and additional
More informationOptimization of Contact Pattern Position on the Worm Wheel Teeth by Axial Shift in Worm Wheel Axis
From the SelectedWorks of Arash Houshmand Spring March, 04 Optimization of Contact Pattern Position on the Worm Wheel Teeth by Axial Shift in Worm Wheel Axis Ehsan Soury Arash Houshmand Alireza Nezamabadi
More informationFEASIBILITY STYDY OF CHAIN DRIVE IN WATER HYDRAULIC ROTARY JOINT
FEASIBILITY STYDY OF CHAIN DRIVE IN WATER HYDRAULIC ROTARY JOINT Antti MAKELA, Jouni MATTILA, Mikko SIUKO, Matti VILENIUS Institute of Hydraulics and Automation, Tampere University of Technology P.O.Box
More informationGEARBOX NOISE AND VIBRATION INFLUENCE OF BEARING PRELOAD
GEARBOX NOISE AND VIBRATION INFLUENCE OF BEARING PRELOAD Mats Åkerblom * and Ulf Sellgren *KTH Dep. of Machine Design SE-100 44 Stockholm Sweden *Volvo CE Component Division, SE-631 85 Eskilstuna, Sweden,
More informationTheoretical and Experimental Investigation of Compression Loads in Twin Screw Compressor
Purdue University Purdue e-pubs International Compressor Engineering Conference School of Mechanical Engineering 2004 Theoretical and Experimental Investigation of Compression Loads in Twin Screw Compressor
More informationDesign Investigations and Indications for Acoustical Optimized Gear Meshes Using Plastic Gears
TECHNICAL Design Investigations and Indications for Acoustical Optimized Gear Meshes Using Plastic Gears M. Koop, E. Melnikov and V. Merz Introduction When it comes to a steel-gear mesh, there are several
More informationOptimization Procedure for Complete Planetary Gearboxes with Torque, Weight, Costs and Dimensional Restrictions Ulrich Kissling 1,a, Inho Bae 1,b
Applied Mechanics and Materials Vol. 86 (2011) pp 51-54 Online available since 2011/Aug/16 at www.scientific.net (2011) Trans Tech Publications, Switzerland doi:10.4028/www.scientific.net/amm.86.51 Optimization
More informationCHAPTER 5 PREVENTION OF TOOTH DAMAGE IN HELICAL GEAR BY PROFILE MODIFICATION
90 CHAPTER 5 PREVENTION OF TOOTH DAMAGE IN HELICAL GEAR BY PROFILE MODIFICATION 5.1 INTRODUCTION In any gear drive the absolute and the relative transmission error variations normally increases with an
More informationSYNTHESIS AND ANALYSIS OF PLASTIC CURVED FACEWIDTH SPUR GEARS
8 SYNTHESIS AND ANALYSIS OF PLASTIC CURVED FACEWIDTH SPUR GEARS Laurentia ANDREI, Gabriel ANDREI, Alexandru EPUREANU, Iulian Gabriel BÎRSAN The University Dunarea de Jos of Galati, Romania Laurencia.andrei@ugal.ro
More informationBibliography. [1] Buckingham, Earle: "Analytical Mechanics of Gears", McGraw-Hill, New York, 1949, and republished by Dover, New York, 1963.
Bibliography The first five references listed are books on gearing. Some of them deal not only with the geometry, but also with many other aspects of gearing. However, the books are included in this bibliography
More informationDESIGN OF SPUR GEAR AND ITS TOOTH PROFILE ON MATLAB
DESIGN OF SPUR GEAR AND ITS TOOTH PROFILE ON MATLAB Krishankant kankar 1 & Rajesh pratap singh 2 Department of Mechanical Engineering, IPSCTM Gwalior- 474001 ABSTRACT Spur Gears are the most widely recognized
More informationSelection criteria of the addendum modification coefficients of spur gear pairs with smaller number of pinion teeth
IOP Conference Series: Materials Science and Engineering PAPER OPEN ACCESS Selection criteria of the addendum modification coefficients of spur gear pairs with smaller number of pinion teeth To cite this
More informationRelevant friction effects on walking machines
Relevant friction effects on walking machines Elena Garcia and Pablo Gonzalez-de-Santos Industrial Automation Institute (CSIC) 28500 Madrid, Spain email: egarcia@iai.csic.es Key words: Legged robots, friction
More informationInfluential Criteria on the Optimization of a Gearbox, with Application to an Automatic Transmission
Influential Criteria on the Optimization of a Gearbox, with Application to an Automatic Transmission Peter Tenberge, Daniel Kupka and Thomas Panéro Introduction In the design of an automatic transmission
More informationStudy on Flow Characteristic of Gear Pumps by Gear Tooth Shapes
Journal of Applied Science and Engineering, Vol. 20, No. 3, pp. 367 372 (2017) DOI: 10.6180/jase.2017.20.3.11 Study on Flow Characteristic of Gear Pumps by Gear Tooth Shapes Wen Wang 1, Yan-Mei Yin 1,
More informationGEAR NOISE REDUCTION BY NEW APPROACHES IN GEAR FINISHING PROCESSES
GEAR NOISE REDUCTION BY NEW APPROACHES IN GEAR FINISHING PROCESSES Nikam Akshay 1, Patil Shubham 2, Pathak Mayur 3, Pattewar Vitthal 4, Rawanpalle Mangesh 5 1,2,3,4,5 Department of Mechanical Engineering,
More informationDesign and Analysis of Six Speed Gear Box
Design and Analysis of Six Speed Gear Box Ujjayan Majumdar 1, Sujit Maity 2, Gora Chand Chell 3 1,2 Student, Department of Mechanical Engineering, Jalpaiguri Government Engineering College, Jalpaiguri,
More informationFinite Element Modeling and Analysis of Vehicle Space Frame with Experimental Validation
Finite Element Modeling and Analysis of Vehicle Space Frame with Experimental Validation Assoc. Prof Dr. Mohammed A.Elhaddad Mechanical Engineering Department Higher Technological Institute, Town of 6
More informationAN OPTIMAL PROFILE AND LEAD MODIFICATION IN CYLINDRICAL GEAR TOOTH BY REDUCING THE LOAD DISTRIBUTION FACTOR
AN OPTIMAL PROFILE AND LEAD MODIFICATION IN CYLINDRICAL GEAR TOOTH BY REDUCING THE LOAD DISTRIBUTION FACTOR Balasubramanian Narayanan Department of Production Engineering, Sathyabama University, Chennai,
More informationDesign and Test of Transonic Compressor Rotor with Tandem Cascade
Proceedings of the International Gas Turbine Congress 2003 Tokyo November 2-7, 2003 IGTC2003Tokyo TS-108 Design and Test of Transonic Compressor Rotor with Tandem Cascade Yusuke SAKAI, Akinori MATSUOKA,
More informationNUMERICAL RESEARCH IN KISSSOFT FOR NOISE REDUCTION IN SPUR GEARS TRANSMISSIONS
The 5 th Edition of the Interdisciplinarity in Engineering International Conference Petru Maior University of Tîrgu Mureş, Romania, 2011 NUMERICAL RESEARCH IN KISSSOFT FOR NOISE REDUCTION IN SPUR GEARS
More informationINFLUENCE OF MAGNET POLE ARC VARIATION ON THE COGGING TORQUE OF RADIAL FLUX PERMANENT MAGNET BRUSHLESS DC (PMBLDC) MOTOR
INFLUENCE OF MAGNET POLE ARC VARIATION ON THE COGGING TORQUE OF RADIAL FLUX PERMANENT MAGNET BRUSHLESS DC (PMBLDC) MOTOR Amit N.Patel 1, Aksh P. Naik 2 1,2 Department of Electrical Engineering, Institute
More informationThe Gear Whine Noise and vibro-acoustic emission of gear-box
The Gear Whine Noise and vibro-acoustic emission of gear-box Niola V., Quaremba G. Department of Mechanical and Energetics University of Naples Federico II Via Claudio 21, 80125, Napoli, ITALY vincenzo.niola@unina.it
More informationContact Fatigue Characterization of Through-Hardened Steel for Low-Speed Applications like Hoisting
Contact Fatigue Characterization of Through-Hardened Steel for Low-Speed Applications like Hoisting Dr. Michel Octrue, Antoine Nicolle and Remy Genevier In several applications like hoisting equipment
More informationPrediction of Dynamic Factors for Helical Gears in a High-Speed Multibody Gearbox System
Prediction of Dynamic Factors for Helical Gears in a High-Speed Multibody Gearbox System Niranjan Raghuraman, Dr. Sharad Jain and Chad Glinsky [The statements and opinions contained herein are those of
More informationDesign of Helical Gear and Analysis on Gear Tooth
Design of Helical Gear and Analysis on Gear Tooth Indrale Ratnadeep Ramesh Rao M.Tech Student ABSTRACT Gears are mainly used to transmit the power in mechanical power transmission systems. These gears
More informationRESEARCH OF TECHNICAL PARAMETERS OF TRANSMISIONS FOR VEHICLES AND AGRICULTURAL MACHINES
U.P.B. Sci. Bull., Series D, Vol. 69, No. 4, 2007 ISSN 1454-2358 RESEARCH OF TECHNICAL PARAMETERS OF TRANSMISIONS FOR VEHICLES AND AGRICULTURAL MACHINES Antoaneta DOBREVA 1, V. DOBREV 2 The technical parameters
More informationFriction Calculation and Simulation of Column Electric Power Steering System
Friction Calculation and Simulation of Column Electric Power Steering System Seyed Hamid Mirmohammad Sadeghi, Raffaella Sesana, Daniela Maffiodo Abstract This study presents a procedure for friction calculation
More informationQuindos the Ultimate Software package for Gears, Gear Tools and other Special Applications
Quindos the Ultimate Software package for Gears, Gear Tools and other Special Applications Quindos gear packages Gearings Cylindrical Gear Unknown Gear Involute & Lead Master Straight Bevel Gear Spiral
More informationVibration Measurement and Noise Control in Planetary Gear Train
Vibration Measurement and Noise Control in Planetary Gear Train A.R.Mokate 1, R.R.Navthar 2 P.G. Student, Department of Mechanical Engineering, PDVVP COE, A. Nagar, Maharashtra, India 1 Assistance Professor,
More informationStress Analysis of a Ring gear of Planetary Gearbox
ISSN 2395-1621 Stress Analysis of a Ring gear of Planetary Gearbox #1 Sumit Phadtare, #2 Suresh Jadhav 1 sumph10@gmail.com #12 Mechanical Engineering, Veermata Jijabai Technological Institute Mumbai, Maharashtra,
More informationCase Study Involving Surface Durability and Improved Surface Finish
Case Study Involving Surface Durability and Improved Surface Finish G. Blake and J. Reynolds (Printed with permission of the copyright holder, the American Gear Manufacturers Association, 500 Montgomery
More informationINFLUENCE OF TEMPERATURE ON THE PERFORMANCE TOOTHED BELTS BINDER MAGNETIC
INFLUENCE OF TEMPERATURE ON THE PERFORMANCE TOOTHED BELTS BINDER MAGNETIC Merghache Sidi Mohammed, Phd Student Ghernaout Med El-Amine, Doctor in industrial automation University of Tlemcen, ETAP laboratory,
More informationDetermination and improvement of bevel gear efficiency by means of loaded TCA
Determination and improvement of bevel gear efficiency by means of loaded TCA Dr. J. Thomas, Dr. C. Wirth, ZG GmbH, Germany Abstract Bevel and hypoid gears are widely used in automotive and industrial
More informationResearch on vibration reduction of multiple parallel gear shafts with ISFD
Research on vibration reduction of multiple parallel gear shafts with ISFD Kaihua Lu 1, Lidong He 2, Wei Yan 3 Beijing Key Laboratory of Health Monitoring and Self-Recovery for High-End Mechanical Equipment,
More informationDesign & Development of Precision Plastic Gear Transmissions
Design & Development of Precision Plastic Gear Transmissions David Sheridan Senior Design Engineer TICONA 1 2012 Ticona Gears Webinar Gear_DesignPPT_AM_0212_016.pdf Overview Methodical and rational procedure
More informationNumerical and Experimental Research on Vibration Mechanism of Rotary Compressor
Purdue University Purdue e-pubs International Compressor Engineering Conference School of Mechanical Engineering 2018 Numerical and Experimental Research on Vibration Mechanism of Rotary Compressor Zhiqiang
More informationTwin Screw Compressor Performance and Its Relationship with Rotor Cutter Blade Shape and Manufacturing Cost
Purdue University Purdue e-pubs International Compressor Engineering Conference School of Mechanical Engineering 1994 Twin Screw Compressor Performance and Its Relationship with Rotor Cutter Blade Shape
More informationOptimization of Design Based on Tip Radius and Tooth Width to Minimize the Stresses on the Spur Gear with FE Analysis.
Optimization of Design Based on Tip Radius and Tooth Width to Minimize the Stresses on the Spur Gear with FE Analysis. K.Ruthupavan M. Tech Sigma Consultancy Service 7-1-282/C/A/1, 104, First Floor Rajaiah
More informationEffect of Geometry Factor I & J Factor Multipliers in the performance of Helical Gears
Effect of Geometry Factor I & J Factor Multipliers in the performance of Helical Gears 1 Amit D. Modi, 2 Manan B. Raval, 1 Lecturer, 2 Lecturer, 1 Department of Mechanical Engineering, 2 Department of
More informationPRECISION GROUND GEARS Spur & Helical Gears
Spur & Helical Gears Description Symbol Unit Equation Normal Module m n Transverse Module m t = m n / cos b Axial Module m x = m n / sin b Normal Pressure Angle a n degrees = 2 Transverse Pressure Angle
More informationTooth Shape Optimization of the NGW31 Planetary Gear Based on Romax Designer
6th International Conference on Electronics, Mechanics, Culture and Medicine (EMCM 2015) Tooth Shape Optimization of the NGW31 Planetary Gear Based on Romax Designer Chunming Xu 1, a *, Ze Liu 1, b, Wenjun
More informationINCREASE IN FATIGUE LIFE OF SPUR GEAR BY INTRODUCING CIRCULAR STRESS RELIEVING FEATURE
INTERNATIONAL JOURNAL OF MECHANICAL ENGINEERING AND International Journal of Mechanical Engineering and Technology (IJMET), ISSN 0976 6340(Print), ISSN 0976 6359(Online), Volume TECHNOLOGY 6, Issue 5,
More informationTheory of Machines II EngM323 Laboratory User's manual Version I
Theory of Machines II EngM323 Laboratory User's manual Version I Table of Contents Experiment /Test No.(1)... 2 Experiment /Test No.(2)... 6 Experiment /Test No.(3)... 12 EngM323 Theory of Machines II
More informationISO INTERNATIONAL STANDARD
INTERNATIONAL STANDARD ISO 14635-3 First edition 2005-09-15 Gears FZG test procedures Part 3: FZG test method A/2,8/50 for relative scuffing load-carrying capacity and wear characteristics of semifluid
More informationPREDICTION OF PISTON SLAP OF IC ENGINE USING FEA BY VARYING GAS PRESSURE
PREDICTION OF PISTON SLAP OF IC ENGINE USING FEA BY VARYING GAS PRESSURE V. S. Konnur Department of Mechanical Engineering, BLDEA s Engineering College, Bijapur, Karnataka, (India) ABSTRACT The automotive
More informationInvestigation for Flow of Cooling Air through the Ventilated Disc Brake Rotor using CFD
International Journal of Thermal Technologies E-ISSN 2277 4114 2015 INPRESSCO, All Rights Reserved Available at http://inpressco.com/category/ijtt/ Research Article Investigation for Flow of Cooling Air
More informationTribology Aspects in Angular Transmission Systems
Tribology Aspects in Angular Transmission Systems Part II Straight Bevel Gears Dr. Hermann Stadtfeld (This is the second of an eight-part series on the tribology aspects of angular gear drives. Each article
More informationAnalysis of Torsional Vibration in Elliptical Gears
The The rd rd International Conference on on Design Engineering and Science, ICDES Pilsen, Czech Pilsen, Republic, Czech August Republic, September -, Analysis of Torsional Vibration in Elliptical Gears
More informationAnalysis on natural characteristics of four-stage main transmission system in three-engine helicopter
Article ID: 18558; Draft date: 2017-06-12 23:31 Analysis on natural characteristics of four-stage main transmission system in three-engine helicopter Yuan Chen 1, Ru-peng Zhu 2, Ye-ping Xiong 3, Guang-hu
More informationStructural Stress Analysis of Reduction Helical Gear box Casing
International OPEN ACCESS Journal Of Modern Engineering Research (IJMER) Structural Stress Analysis of Reduction Helical Gear box Casing Sudhir Mane *, Vijay Patil ** * Department Of Mechanical Engineering,
More informationENHANCED ROTORDYNAMICS FOR HIGH POWER CRYOGENIC TURBINE GENERATORS
The 9th International Symposium on Transport Phenomena and Dynamics of Rotating Machinery Honolulu, Hawaii, February -1, ENHANCED ROTORDYNAMICS FOR HIGH POWER CRYOGENIC TURBINE GENERATORS Joel V. Madison
More informationEvaluating Fatigue Life of Injection-Molded-Plastic-Gear added with Carbon Particle made from Rice Hull
The The 3rd 3rd International Conference on on Design Engineering and Science, ICDES 14 Pilsen, Czech Pilsen, Republic, Czech August Republic, 31 September 1-3, 14 Evaluating Fatigue Life of Injection-Molded-Plastic-Gear
More informationRE-EQUIPPING OF GEAR HOBBING MACHINE: NUMERICAL CONTROL INNOVATION BASED ON PLC AND SERVOMECHANISM
RE-EQUIPPING OF GEAR HOBBING MACHINE: NUMERICAL CONTROL INNOVATION BASED ON PLC AND SERVOMECHANISM 1 OMKAR KADAM, 2 BALIRAM JADHAV, 3 SHRIKANT PAWAR 1 M.Tech, Production Engineering, Mechanical Engineering
More informationStatic And Modal Analysis of Tractor Power Take Off (PTO) Gearbox Housing
Static And Modal Analysis of Tractor Power Take Off (PTO) Gearbox Housing Gopali S Lamani 1, Prof: S.R.Basavaraddi 2, Assistant Professor, Department of Mechanical Engineering, JSPM NTC RSSOER,India1 Professor,
More informationRotor Design & Performance for a BDFM
439 1 Rotor Design & Performance for a BDFM P J Tavner +, R A McMahon *, P Roberts *, E Abdi-Jalebi *, X Wang *, M Jagieła #, T Chick* Abstract Analysis of the behaviour of the Brushless Doubly Fed Machine
More informationGear Measurement. Lecture (7) Mechanical Measurements
18 3. Gear profile checking 2. Involute measuring machine In this method the gear is held on a mandrel and circular disc of same diameter as the base circle of gear for the measurement is fixed on the
More informationEstimation of Wear Depth on Normal Contact Ratio Spur Gear
Middle-East Journal of Scientific Research 24 (S1): 38-42, 2016 ISSN 1990-9233 IDOSI Publications, 2016 DOI: 10.5829/idosi.mejsr.2016.24.S1.9 Estimation of Wear Depth on Normal Contact Ratio Spur Gear
More informationADRS Series Mechanical-Bearing Rotary Stage
ADRS Series Mechanical-Bearing Rotary Stage High torque output, direct-drive brushless servomotor Cog-free slotless motor design for outstanding velocity stability Direct coupled, high-accuracy rotary
More informationIs Low Friction Efficient?
Is Low Friction Efficient? Assessment of Bearing Concepts During the Design Phase Dipl.-Wirtsch.-Ing. Mark Dudziak; Schaeffler Trading (Shanghai) Co. Ltd., Shanghai, China Dipl.-Ing. (TH) Andreas Krome,
More informationLEVER OPTIMIZATION FOR TORQUE STANDARD MACHINES
LEVER OPTIMIZATION FOR TORQUE STANDARD MACHINES D. Röske, K. Adolf and D. Peschel Torque laboratory Division for Mechanics and Acoustics Phys.-Techn. Bundesanstalt, D-38116 Braunschweig, Germany Abstract:
More informationReli-a-Flex TM Reliance
Reli-a-Flex TM Reliance Precision Mechatronics LLP www.myostat.ca Reli-a-Flex - Accurate transfer of motion between two shafts Patented: - UK No. 2316735 - US No. 6,203,437 B1 - European No. EP 0922168
More informationThermal Analysis of Helical and Spiral Gear Train
International Journal for Ignited Minds (IJIMIINDS) Thermal Analysis of Helical and Spiral Gear Train Dr. D V Ghewade a, S S Nagarale b & A N Pandav c a Principal, Department of Mechanical, GENESIS, Top-Kolhapur,
More informationStudy on Flow Fields in Variable Area Nozzles for Radial Turbines
Vol. 4 No. 2 August 27 Study on Fields in Variable Area Nozzles for Radial Turbines TAMAKI Hideaki : Doctor of Engineering, P. E. Jp, Manager, Turbo Machinery Department, Product Development Center, Corporate
More informationGEARING. Theory of. Stephen. Kinetics, Geometry, and Synthesis. P. Radzevich. /Ov CRC Press yc*** J Taylor& Francis Croup Boca Raton
Theory of GEARING Kinetics, Geometry, and Synthesis Stephen P. Radzevich /Ov CRC Press yc*** J Taylor& Francis Croup Boca Raton London New York CRC Press is an imprint of the Taylor & Francis Group, an
More informationA dream? Dr. Jürgen Bredenbeck Tire Technology Expo, February 2012 Cologne
Rolling resistance measurement on the road: A dream? Dr. Jürgen Bredenbeck Tire Technology Expo, 14.-16. February 2012 Cologne Content Motivation Introduction of the used Measurement Equipment Introduction
More informationTransient Thermal Analysis of Screw Compressors, Part III: Transient Thermal Analysis of a Screw Compressor to Determine Rotor-to-Rotor Clearances
Purdue University Purdue e-pubs International Compressor Engineering Conference School of Mechanical Engineering 26 Transient Thermal Analysis of Screw Compressors, Part III: Transient Thermal Analysis
More informationSOLVING NVH ISSUES IN HYBRID AND EV POWERTRAINS
SOLVING NVH ISSUES IN HYBRID AND EV POWERTRAINS ABSTRACT Michael Bryant, MEng (Hons) PhD Transmission Engineer Drive System Design Ltd, United Kingdom This paper discusses the potential conflict that can
More informationADRS Series Mechanical-Bearing Rotary Stage
ADRS Series Mechanical-Bearing Rotary Stage High torque output, direct-drive brushless servomotor Cog-free slotless motor design for outstanding velocity stability Direct coupled, high-accuracy rotary
More informationA Study on the Efficiency of Tapered Roller Bearings
A Study on the Efficiency of Tapered Roller Bearings IN WOOK LEE*, DAE YONG LEE*, HEE CHEOL KIM**, KWANG HYUN KIM***, and CHUL KI SONG**** *R&D center, Schaffler Korea, Changwon, Gyeongnam,Korea ** Yongdong
More informationDesign and Analysis of Arc Springs used in Dual Mass Flywheel
Volume-2, Issue-1, January-February, 2014, pp. 35-41, IASTER 2014 www.iaster.com, Online: 2347-4904, Print: 2347-8292 Design and Analysis of Arc Springs used in Dual Mass Flywheel ABSTRACT 1 Govinda, A,
More informationCHAPTER 3 page 35 PRINCIPLES OF GEAR-TOOTH GENERATION. .1 Angular Velocity Ratio
CHAPTER 1 page 1..., ATURE, NOTATION AND CONVENTIONS TYPES OF GEAR 1.1 Spur 1.2 Helical 1.3 Double-Helical 1.4 Crossed Helical 1.5 Conical Involute 1.6 Bevel 1.7 Spiral Bevel 1.8 Hypoid 1.9 Worm NOMENCLATURE
More informationDesign of A New Non-Contact Screw Seal and Determination of Performance Characteristics
Proceedings of the World Congress on Momentum, Heat and Mass Transfer (MHMT 16) Prague, Czech Republic April 4 5, 2016 Paper No. ENFHT 114 DOI: 10.11159/enfht16.114 Design of A New Non-Contact Screw Seal
More informationGear Optimisation for Reduced Noise Levels
EES KISSsoft GmbH ++41 41 755 09 54 (Phone) P.O. Box 121 ++41 41 755 09 48 (Fax) Weid 10 ++41 79 372 64 89 (Mobile) 6313 Menzingen h.dinner@ees-kisssoft.ch Switzerland www.ees-kisssoft.ch Gear Optimisation
More informationCONTRIBUTION TO THE CINEMATIC AND DYNAMIC STUDIES OF HYDRAULIC RADIAL PISTON MOTORS.
Ing. MIRCEA-TRAIAN CHIMA CONTRIBUTION TO THE CINEMATIC AND DYNAMIC STUDIES OF HYDRAULIC RADIAL PISTON MOTORS. PhD Thesis Abstract Advisor, Prof. dr. ing. matem. Nicolae URSU-FISCHER D.H.C. Cluj-Napoca
More informationSECTION 4 SPUR GEAR CALCULATIONS
Function of α, or invα, is known as involute function. Involute function is very important in gear design. Involute function values can be obtained from appropriate tables. With the 3.1 Contact Ratio center
More informationNumerical check of a 2DOF transmission for wind turbines
Numerical check of a 2DOF transmission for wind turbines Beibit Shingissov 1, Gani Balbayev 2, Shynar Kurmanalieva 3, Algazy Zhauyt 4, Zhanar Koishybayeva 5 1, 2 Almaty University of Power Engineering
More informationResearch on Optimization for the Piston Pin and the Piston Pin Boss
186 The Open Mechanical Engineering Journal, 2011, 5, 186-193 Research on Optimization for the Piston Pin and the Piston Pin Boss Yanxia Wang * and Hui Gao Open Access School of Traffic and Vehicle Engineering,
More informationSimple Gears and Transmission
Simple Gears and Transmission Simple Gears and Transmission page: of 4 How can transmissions be designed so that they provide the force, speed and direction required and how efficient will the design be?
More informationAN APPROACH TO ENERGY CONSERVATION FOR AIR MOTOR
P- Proceedings of the 7th JFPS International Symposium on Fluid Power, TOYAMA 8 September -8, 8 AN APPROACH TO ENERGY CONSERVATION FOR AIR MOTOR Eisuke SUMIDA*, Masaki GOTO* and Hiroshi MUTOH** *Department
More informationGMS 32. Double flank testing machine for gears
GMS 32 Double flank testing machine gears Specifications max. diameter of measured gear 100 mm (4'') max. diameter of master gear 80 mm center distance 0... 90mm max. weight of gear 0.5 kg max. testing
More informationResearch Group, Universiti Tun Hussein Onn Malaysia, Batu Pahat, Johor, Malaysia
Condition Monitoring of Variable Speed Worm Gearbox Lubricated With Different Viscosity Oils Maznan Ismon 1,2,a, Izzuddin Zaman 1,2,b and Mohd Imran Ghazali 1 1 Faculty of Mechanical and Manufacturing
More informationBENDING STRESS ANALYSIS OF SPUR GEAR BY USING MODIFIED LEWIS FORMULA
BENDING STRESS ANALYSIS OF SPUR GEAR BY USING MODIFIED LEWIS FORMULA 1 Namrata S.Gadakh, 2 Prof. R.S. Shelke 1 P.G. Scholar Mechanical SVIT Nashik Pune University 2 Assistant Professor (Mechanical Dept.)
More informationRim Stress Analysis of Epicyclic Gearbox
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 Research Article Mahendra
More informationAn Experimental Study on the Efficiency of Bicycle Transmissions
An Experimental Study on the Efficiency of Bicycle Transmissions R. Bolen and C. M. Archibald Grove City College, Grove City, PA Abstract: The objective of this project is to measure the efficiencies of
More informationExtending the Operation Range of Dry Screw Compressors by Cooling Their Rotors
Purdue University Purdue e-pubs International Compressor Engineering Conference School of Mechanical Engineering 2004 Extending the Operation Range of Dry Screw Compressors by Cooling Their Rotors Nikola
More informationAN EXPERIMENTAL INVESTIGATION INTO TORSIONAL VIBRATION IN BALL MILLS
FIFTH INTERNATIONAL CONGRESS ON SOUND AND VIBRATION DECEMBER 15-18, 1997 ADELAIDE, SOUTH AUSTRALIA AN EXPERIMENTAL INVESTIGATION INTO TORSIONAL VIBRATION IN BALL MILLS R. M. Heidecker, S. J. Drew and B.
More informationHeat Transfer in Rectangular Duct with Inserts of Triangular Duct Plate Fin Array
Heat Transfer in Rectangular Duct with Inserts of Triangular Duct Plate Fin Array Deepak Kumar Gupta M. E. Scholar, Raipur Institute of Technology, Raipur (C.G.) Abstract: In compact plate fin heat exchanger
More informationMethodology for Designing a Gearbox and its Analysis
Methodology for Designing a Gearbox and its Analysis Neeraj Patel, Tarun Gupta B.Tech, Department of Mechanical Engineering, Maulana Azad National Institute of Technology, Bhopal, India. Abstract Robust
More informationSIX-BAR STEERING MECHANISM
SIX-BAR STEERING MECHANISM Shrey Lende 1 1 UG Student, Department of Mech, G.H Raisoni College of Engineering, Nagpur, RTMN University ABSTRACT In this paper a steering system is designed for a Low weight
More information