|Table of Contents|

Influence of suspension parameters of traction motor on vibration characteristics of traction drive components of high-speed train(PDF)

《交通运输工程学报》[ISSN:1671-1637/CN:61-1369/U]

Issue:
2023年01期
Page:
156-169
Research Field:
载运工具运用工程
Publishing date:
2023-02-20

Info

Title:
Influence of suspension parameters of traction motor on vibration characteristics of traction drive components of high-speed train
Author(s):
ZHU Hai-yan1; 2;  LI Jie1; 2;  YIN Bi-chao3;  ZENG Jing4;  XIAO Qian1; 2;  ZHOU Sheng-tong1; 2;  XIE Feng-yun1; 2
(1. State Key Laboratory of Performance Monitoring and Protecting of Rail Transit Infrastructure, East China Jiaotong University, Nanchang 330013, Jiangxi, China; 2. Key Laboratory of Conveyance and Equipment of Ministry of Education, East China Jiaotong University, Nanchang 330013, Jiangxi, China; 3. CRRC Nanjing Puzhen Co., Ltd., Nanjing 210031, Jiangsu, China; 4. State Key Laboratory of Traction Power, Southwest Jiaotong University, Chengdu 610031, Sichuan, China)
Keywords:
vehicle engineering;  high-speed train;  joint simulation;  traction motor;  gearbox housing;  vibration characteristic
PACS:
U270.3
DOI:
10.19818/j.cnki.1671-1637.2023.01.012
Abstract:
The rigid-flexible coupling dynamics model with a flexible gearbox and a flexible wheelset was established based on the vehicle system dynamics theory. The control model of the traction motor was established according to the direct torque control theory. The electromechanical coupling model was established by Simpack and Simulink joint simulation platform. Considering the coupling effects of wheel rail excitation, vehicle structure vibration and harmonic torque, the frequency spectrum of the vibration characteristics of the traction drive components was analyzed by the electromechanical joint simulation. The values of radial stiffness, axial stiffness and damping of suspension nodes of the traction motor were studied in different magnitude ranges. Analysis results show that under the actions of harmonic torque of the traction motor and polygon wheels, the traction drive components of high-speed trains show more obvious high-frequency vibration. When the radial stiffness of suspension node of the traction motor is 20-30 MN?m-1, the vertical vibration of the traction motor reaches the minimum value. The vibration accelerations of gearbox housing and traction motor at 6 times fundamental frequency and the rotation frequency of wheels are smaller. In addition, the vehicle safety index is better when the radial stiffness is smaller. When the axial stiffness of suspension node of the traction motor is 4-6 MN?m-1, the gearbox housing and traction motor are less affected by the harmonic torque of the motor and the high-frequency excitation of polygon wheels. When the damping of suspension node of the traction motor is 0.1-40.0 kN?s?m-1, the effective vibration value of bogie components is smaller. The change in damping has little effect on the vehicle dynamics index, and the vehicle safety and stability indexes are better. 3 tabs, 18 figs, 25 refs.

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Last Update: 2023-02-20