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Super-harmonic resonance of gear transmission system under stick-slip vibration in high-speed train

Journal of Central South University 2017年第3期24卷 726-735页

作者： HUANG Guan-hua XU Si-si ZHANG Wei-hua YANG Cai-jin State Key Laboratory of Traction Power （Southwest Jiaotong University） Chengdu 61003 I China Beijing Haidongqing Electrical and Mechanical Equipment Co. Ltd Beijing 101300 China CRRC Institute Co. Ltd Beiiing 100070 China

This work deals with super-harmonic responses and the stabilities of a gear transmission system of a high-speed train under the stick-slip oscillation of the *** dynamic model of the system is developed with consideration on the factors including the time-varying system stiffness,the transmission error,the tooth backlash and the self-excited excitation of the *** frequency-response equation of the system at super-harmonic resonance is obtained by the multiple scales method,and the stabilities of the system are analyzed using the perturbation *** nonlinear behaviors of the system including multi-valued solutions,jump phenomenon,hardening stiffness are *** effects of the equivalent damping and the loads of the system under the stick-slip oscillation are *** shows that the change of the load can obviously influence the resonance frequency of the system and have little effect on the steady-state response amplitude of the *** damping of the system has a negative effect,opposite to the *** synthetic damping of the system composed of meshing damping and equivalent damping may be less than zero when the wheel-set has a large slippage,and the system loses its stability owing to the Hopf *** results are validated by numerical simulations.

关键词： stick-slip vibration super-harmonic resonance Hopf bifurcation gear transmission system high-speed train

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Rigid-Flex Coupling Modeling and Simulation on Multistage gear transmission system

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Journal of Shanghai Jiaotong university(Science) 2016年第4期21卷 457-461页

作者：周杰贾云献刘鑫方彬侠文强 Department of Management Engineering Mechanical Engineering College

As multistage gear transmission systems are complex and precise, the flexibility of shaft can influence the dynamic response of system. In order to study dynamic response of the system, we build the rigid model of gear system and the finite element model of the gear shaft. virtual prototype technology, and a contrast between rigid The rigid-flex coupling model is established with the model and rigid-flex coupling model is constructed. With these methods, the dynamic responses with different rotation speeds and different loading magnitudes are examined. We also analyze the influence of shaft flexibility, rotation speeds and loading magnitudes on the vibration characteristics of gear transmission systems.

关键词： gear transmission system virtual prototype flexible body

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Bending-Torsional Coupled Vibration Test of Large Power gear transmission system

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Journal of Beijing Institute of Technology 2010年第4期19卷 411-415页

作者：刘辉项昌乐孙恬恬蔡仲昌 The State Key Laboratory of Vehicle transmission Beijing Institute of Technology ORV Division Project and Vehicle Management Department Beijing Automotive Technology Center

In order to test the bending-torsional coupled vibration characteristics of the multi-shafts gear transmission system of large power vehicles,a torsional vibration exciter was used to apply torsional excitation on the gear transmission systems and thirty-two acceleration sensors were used to measure the tangential acceleration of each *** vibration signals and bending vibration signals of each measuring point were obtained by calculation of the four-point-response *** modal parameters of gear transmission systems including nature frequency,modal shape and modal damping ratio were obtained by identifying modal parameters of the torsional vibration signal and bending vibration *** characteristic of the bending vibration and torsional vibration of the gear systems were studied through the analysis of the nature frequency and modal *** nonlinearity characteristic of the gear transmission system was investigated through single frequency excitation test,which can be the foundation for further nonlinearity research.

关键词： bending-torsional coupled gear transmission system modal parameters identify nonlinearity

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Vibration performance discrete optimization of a gear system featuring confluence transmission used in marine gearbox

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International Journal of Modeling, Simulation, and Scientific Computing 2017年第1期8卷 165-178页

作者： Zeyin He Tao Deng Xiangyang Xu School of Mechantronics and Vehicle EngineeringChongqing Jiaotong University Chongqing 400074P.R.China State Key Laboratory of Mechanical transmission Chongqing University Chongqing 400030P.R.China

A dynamic model of gear transmission system which includes time-varying meshing stiffness,meshing damp and transmission error is ***,the analytical solution of the vibration response would be obtained by solving the dynamic model based on the harmonic balance *** on this basis,a dynamic performance discrete optimization model of transmission sub-system would be constructed,which sets objective function up from vibration acceleration and the total mass of transmission sub-system,treats the module,number of teeth and helix angle as design variables,and takes gear strength and assembly relationship as ***,the optimal solution of design variables could be obtained through the multivariable mixed discrete optimization program which based on the branch-bound *** results show that the vibration acceleration and the total mass of transmission sub-system reduce by 34.6%and 6.8%,respectively.

关键词： gear transmission system dynamic model vibration performance discrete optimization

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Adaptive Backstepping Control of gear transmission systems with Elastic Deadzone

Adaptive Backstepping Control of Gear Transmission Systems w...

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第36届中国控制会议

作者： Jiawei Song Zongyu Zuo Zhengtao Ding The Seventh Research Division and Science and Technology on Aircraft Control LaboratoryBeihang University School of Electrical and Electronic Engineering University of Manchester

ISBN: (纸本)9781538629185

This paper deals with the tracking control problem of uncertain transmission systems in the presence of elastic deadzone. Due to the derivative term in the elastic deadzone model, it is not straightforward to apply the backstepping control for the elastic system which is not in strict feedback form. To overcome this limitation, the system is first transformed into two cascaded subsystems and an adaptive backstepping controller is proposed based on the transformed cascaded system. The stability analysis is carried out within the framework of Lyapunov functions and shows that all the states of the closed-loop system are bounded and the tracking error is uniformly ultimately bounded. Finally, simulations are presented to demonstrate the performance of the controlled system.

关键词： Elastic deadzone adaptive backstepping gear transmission system position tracking

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Dynamic Fatigue Reliability Analysis of transmission gear Considering Failure Dependence

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Computer Modeling in Engineering & Sciences 2022年第2期130卷 1077-1092页

作者： Yonghua Li Xiaoning Bai Shanshan Shi Shenxuan Wang College of Locomotive and Rolling Stock Engineering Dalian Jiaotong UniversityDalian116028China School of Mechanical Engineering Dalian Jiaotong UniversityDalian116028China

Multiple failuremodes and strength degradation are usually inherent in the gear transmission system,which brings new challenges for conducting fatigue reliability analysis and *** paper proposes a novel dynamic fatigue reliability analysis method for failure dependence and strength degradation based on the combination of theCopula function and Gamma ***,the dynamic simulation model of the gear transmission system is established to obtain the dynamic stress-time *** Gamma process is then used to describe the strength degradation to establish the dynamic stress-strength interference *** marginal distribution functions of tooth contact fatigue and dedendumbending fatigue are calculated respectively based on the dynamic ***,the joint distribution of the two failure modes can be obtained by the t-Copula function to characterize the failure dependence,and so the dynamic fatigue reliability considering failure dependence can be *** effectiveness of the proposed method is illustrated with *** results reveal the temporal law of reliability and the effects of failure dependence on dynamic fatigue reliability.

关键词： gear transmission system failure dependence dynamic fatigue reliability the Gamma process the Copula function

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