For welded structure of CRH3 High-speed EMU motor hanger, according to finite element method and rigid-flexible coupling multi-body dynamics, a rigid-flexible multi-body dynamics model considering gear transmission of high-speed train motor car is firstly established to simulate the dynamic load of motor hanger in acceleration and uniform speed operating conditions. And then the dynamic stress of dangerous node on motor hanger is calculated by using quasi-static stress method. By comparison of simulating result and online test result, the influence of gear transmission meshing vibration on dynamic load and stress is obtained. The result shows that under the influence of gear transmission meshing vibration, the dynamic load and stress of dangerous node on motor hanger have a significant increase, vertical vibration is intensified. Besides, the simulation result is closer to the experimental results. Therefore, in order to simulate structural vibration effects on the simulation results in dynamic stress simulation of High-speed train structure more accurately, based on considering the flexibility of the structure, the effects of meshing vibration of gear transmission system should be taken into account as well.
ZHANG Li
,
REN Zunsong
,
SUN Shouguang
,
YANG Guang
. Research on Dynamic Load and Stress of High-speed EMU Motor Hanger Considering Influence of Gear Transmission System[J]. Journal of Mechanical Engineering, 2016
, 52(4)
: 133
-140
.
DOI: 10.3901/JME.2016.04.133
[1] 缪炳荣,张卫华,肖守讷,等. 机车车辆车体结构动应力计算方法[J]. 交通运输工程学报,2007,7(6)：17-21.
MIAO Bingrong,ZHANG Weihua,XIAO Shoune,et al. Dynamic stress calculating method of locomotive car body structure[J]. Journal of Traffic and Transportation Engineering,2007,7(6)：17-21.
[2] STEFAN D,HELMUTH N,DELF S. Fatigue life prediction of a railway bogie under dynamic loads through simulation[J]. Vehicle System Dynamics,1998,29(3)：385-402.
[3] KIM H S,YIM H J,KIM C B. Computational durability prediction of body structure in prototype vehicles[J]. International Journal of Automotive Technology,2002,3(4)：129-135.
[4] JAMES A R. Methodology for evaluating vehicle fatigue life and durability[D]. Knoxvile：University of Tennessee,2003.
[5] KUTI I. Simulation of vehicle motions on the basis of the finite element method[J]. Vehicle System Dynamics,2001,36(6)：445-469.
[6] 包学海,池茂儒,卢耀辉,等. 基于子结构法的车辆系统刚柔混合动力学建模方法研究[J]. 铁道机车车辆,2009,29(3)：8-11.
BAO Xuehai,CHI Maoru,LU Yaohui,et al. Research on rigid-flexible mixed dynamics modeling method of vehicle system based on substructure method[J]. Railway Locomotive CAR,2009,29(3)：8-11.
[7] GUYAN R J. Reduction of stiffness and mass matrices[J]. AIAA Journal,1965,3(2)：56-75.
[8] 周海亭,陈莲. 子结构方法在ANSYS软件中的应用[J]. 噪声与振动控制,2001(4)：16-18.
ZHOU Haiting,CHEN Lian. Application of substructure method in software ANSYS[J]. Noise and Vibration Control,2001(4)：16-18.
[9] 王珊珊. 弹性车辆系统振动及传递特性研究[D]. 北京：北京交通大学,2014.
WANG Shanshan. Research on vibration and transfer characteristics of elastic vehicle system[D]. Beijing：Beijing Jiaotong University,2014.
[10] 袁安富,陈俊. ANSYS在模态分析中的应用[J]. 中国制造业信息化,2007,36(11)：42-44.
YUAN Anfu,CHEN Jun. Application of ANSYS in modal analysis[J]. Manufacture Information Engineering of China,2007,36(11)：42-44.
[11] 任尊松,孙守光,李强,等. 构架结构振动与动态应力仿真研究[J]. 机械工程学报,2004,40(8)：187-192.
REN Zunsong,SUN Shouguang,LI Qiang,et al. Research on structure vibration and dynamic stress simulation of bogie frame[J]. Chinese Journal of Mechanical Engineering,2004,40(8)：187-192.
[12] 周素霞,陶永忠,张志华,等. SIMPACK9实例教程[M].北京：北京联合出版公司,2013.
ZHOU Suxia,TAO Yongzhong,ZHANG Zhihua,et al. SIMPACK9 example tutorial[M]. Beijing：Beijing Joint Publishing Company,2013.
[13] 余凌晶. 驱动系统及轮对不平衡对高速车辆动态性能影响的研究[D]. 北京：北京交通大学,2014.
YU Lingjing. Research on drive dystem and imbalanced wheelset influence on vehicle dynamic performance[D]. Beijing：Beijing Jiaotong University,2014.
[14] 缪炳荣. 基于多体动力学和有限元法的车体结构疲劳仿真研究[D]. 成都：西南交通大学,2006.
MIAO Bingrong. Research on carbody structure fatigue simulation based on multi-body system dynamics and finite element method[D]. Chengdu：Southwest Jiaotong University,2006.
[15] 赵少汴. 抗疲劳设计[M]. 北京：机械工业出版社,1994.
ZHAO Shaobian. Anti-fatigue design[M]. Beijing：China Machine Press,1994.
