交通信息与安全2023，Vol.41Issue(6)：12-19,8.DOI:10.3963/j.jssn.1674-4861.2023.06.002
基于正交试验的轴箱内置式高速动车驱动系统悬挂刚度优化方法
A Suspension Stiffness Optimization for Driving System in High-speed Train with the Built-in Axle Box Based on Orthogonal Test
摘要
Abstract
As the core subsystem of the power bogie of high-speed trains,the drive system is an important guarantee for the safe operation of high-speed trains.However,with the continuous increase in operating speed,the reliable and safe operation of high-speed trains is seriously challenged.To reduce the dynamic loads on the suspension nodes of the axle box built-in high-speed dynamic vehicle driving system and to reduce the vibration level of the key components of the driving system,this paper carries out an optimization study on the suspension stiffness of the driving system.To reduce the dynamic loads and the vibration levels of components in the driving system,an optimi-zation analysis of the suspension stiffness is performed in this study.Based on the multi-body system dynamics theo-ry,the axle box built-in high-speed locomotive dynamics model is established by comprehensively considering the ef-fects of track random uneven excitation,traction power transmission and gear meshing.Using the orthogonal test de-sign method,with the optimization objective of reducing the suspension load at the traction motor lifting point and the vertical load at the axle articulation point of the gearbox,the influence of the suspension stiffness of the traction motor lifting point,the gearbox boom lifting point,and the motor-gearbox connection point on the vibration accelera-tion of the key components of the vehicle and the dynamic load at the suspension nodes of the driving system are in-vestigated.The influence law is also analyzed by using the extreme difference analysis method to obtain the optimal matching combination of the suspension stiffness of the driving system.The results show that the maximum longitu-dinal,lateral,and vertical suspension loads of the motor with optimized parameters are reduced by 22.3%,37.9%,and 9.8%,respectively.Meanwhile,the vertical load between the gearbox and wheel axle is reduced by 9.1%.The lat-eral vibration accelerations of the motor,gearbox,and axle box are significantly reduced.关键词
轨道交通/高速列车/参数优化/驱动系统悬挂刚度/内置式轴箱Key words
rail transportation/high-speed train/parameter optimization/suspension stiffness of driving system/the built-in axle box分类
交通工程引用本文复制引用
王家鑫,张汉辰,吴志强,刘禹清,陈再刚..基于正交试验的轴箱内置式高速动车驱动系统悬挂刚度优化方法[J].交通信息与安全,2023,41(6):12-19,8.基金项目
国家自然科学基金项目(52022083、52275132)、中国国家铁路集团有限公司科技研究开发计划项目(K2021J042)资助 （52022083、52275132）
