Dynamic Analysis of Lifting Lug of Equipment Under High Speed EMU

被引：0
|
作者：
Ding, Jie [1 ]
机构：
[1] School of Mechanical Engineering, Hunan University of Arts and Sicence, Changde,415000, China
来源：
Xinan Jiaotong Daxue Xuebao/Journal of Southwest Jiaotong University | 2024年 / 59卷 / 01期
关键词：
In order to reveal the reasons for the great difference of cracks in the lifting lugs at different positions of the under-chassis equipment of CRH380AL high-speed EMU; full-scale test on vibration acceleration and aerodynamic load are carried out. The dynamics model of the large-scale system with multiple coupling of under-chassis equipment; vehicle; wheel-rail; and railway line is established. The vehicle body and under-chassis equipment are established as elastomer models by finite element method. The wheel-rail subsystem and bogie subsystem are modeled by rigid multibody dynamics. The track irregularity spectrum is based on the measured data samples from Wuhan to Guangzhou. The aerodynamic load under the conditions of tunnel passing and tunnel intersection is numerically simulated by the eight-car aerodynamic model. The influence of elasticity; aerodynamic load; bolt stiffness and other factors of the vehicle body on the lifting lug reaction force of the under-chassis equipment is analyzed. The research shows that; there is a strong coupling behavior between the under-chassis equipment and the vehicle system. The mass distribution of the under-chassis equipment and the elastic coupling effect of the vehicle body lead to the maximum vertical dynamic load of No. 4 lifting lug; which corresponds to the highest proportion of on-site fault cracks. The aerodynamic load has a significant impact on the dynamic load of No. 8 lifting lug of the under-chassis equipment. The dynamic load of the lifting lug in the low-frequency domain increases with the increase of bolt stiffness; the vertical average dynamic load and the maximum dynamic load are 4 times and 6 times of the other two directions respectively. The dynamic analysis method based on the coupling of line and vehicle can provide theoretical support for the design of dynamic mechanical behavior of equipment under the vehicle and the optimization of fatigue performance. © 2024 Science Press. All rights reserved;
D O I：
暂无
中图分类号：
学科分类号：
摘要：
引用
收藏
页码：168 / 176
相关论文
共 50 条
  • [1] Study on the Influence of the Center of Gravity of an Under-Chassis Equipment on the Dynamic Performance of High Speed EMU Trains
    Li, Bing
    INTERNATIONAL CONFERENCE ON ADVANCED MANUFACTURE TECHNOLOGY AND INDUSTRIAL APPLICATION, AMTIA 2016, 2016, : 113 - 117
  • [2] Axle spring load test and dynamic characteristics analysis of high speed EMU
    Ren Z.
    Sun S.
    Li Q.
    Jixie Gongcheng Xuebao/Journal of Mechanical Engineering, 2010, 46 (10): : 109 - 115
  • [3] Temperature Monitoring of High-speed EMU Equipment Based on Simulation Analysis and FBG Sensors
    Ding, Yan-Chuang
    Ji, Zhao-Mian
    Zhao, Wen-Zhong
    Wang, Dong-Ping
    STRUCTURAL HEALTH MONITORING 2015: SYSTEM RELIABILITY FOR VERIFICATION AND IMPLEMENTATION, VOLS. 1 AND 2, 2015, : 2135 - 2142
  • [4] Wheel wear analysis of high-speed EMU under bogie hunting
    Qi Y.
    Dai H.
    Wu H.
    Yang Z.
    Zhendong yu Chongji/Journal of Vibration and Shock, 2023, 42 (07): : 38 - 45+76
  • [5] Influence of under-chassis-suspended equipment on high-speed EMU trains and the design of suspension parameters
    Gong, Dao
    Zhou, Jinsong
    Sun, Wenjing
    PROCEEDINGS OF THE INSTITUTION OF MECHANICAL ENGINEERS PART F-JOURNAL OF RAIL AND RAPID TRANSIT, 2016, 230 (08) : 1790 - 1802
  • [6] On the Decoupling Optimization Design Method for under Chassis Equipment Suspension System in High-speed EMU Train
    Xia Z.
    Zhou J.
    Gong D.
    Sun W.
    Sun Y.
    Tiedao Xuebao/Journal of the China Railway Society, 2019, 41 (03): : 71 - 78
  • [7] Evaluation method for the structure of composite equipment cabin of high-speed EMU
    Dong, Ruixue
    Liu, Zhiming
    Journal of Railway Science and Engineering, 2021, 18 (06) : 1392 - 1401
  • [8] Analysis of the instability of the high-speed EMU framework
    Wang, C.
    Luo, S. H.
    Ma, W. H.
    Xu, Z.
    DYNAMICS OF VEHICLES ON ROADS AND TRACKS, VOL 2, 2018, : 1197 - 1202
  • [9] The control of dynamic loads of lifting equipment
    Kotel'nikov, V.S.
    Volkov, V.V.
    Korznikov, E.P.
    Starostin, B.N.
    Montazhnye i Spetsial'nye Raboty v Stroitel'stve, 2001, (03): : 24 - 25
  • [10] The control of dynamic loads of lifting equipment
    Kotel'nikov, V.S.
    Volkov, V.V.
    Korznikov, E.P.
    Starostin, B.N.
    Montazhnye i Spetsial'nye Raboty v Stroitel'stve, 2001, (01): : 24 - 25
12345