考虑一系悬挂局部细化的车辆垂向系统振动传递特性研究

doi:10.3901/JME.2021.10.106

机械工程学报 ›› 2021, Vol. 57 ›› Issue (10): 106-117.doi: 10.3901/JME.2021.10.106

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考虑一系悬挂局部细化的车辆垂向系统振动传递特性研究

徐宁, 李强, 任尊松, 查浩

北京交通大学机械与电子控制工程学院北京 100044

收稿日期:2020-06-15 修回日期:2020-12-31 出版日期:2021-05-20 发布日期:2021-07-23
通讯作者: 李强(通信作者),男,1963年出生,博士,教授,博士研究生导师。主要研究方向为结构疲劳可靠性。E-mail:qli3@bjtu.edu.cn
作者简介:徐宁,男,1987年出生,讲师。主要研究方向为车辆系统动力学与振动控制。E-mail:xuning@bjtu.edu.cn;任尊松,男,1969年出生,博士,教授,博士研究生导师。主要研究方向为车辆系统动力学与结构疲劳。E-mail:zsren@bjtu.edu.cn
基金资助:
国家自然科学基金资助项目（11790281）。

Study on the Vibration Transfer Characteristics of Vertical Vehicle System Considering Local Refinement of Primary Suspension

XU Ning, LI Qiang, REN Zunsong, ZHA Hao

School of Mechanical and Electronic Control Engineering, Beijing Jiaotong University, Beijing 100044

Received:2020-06-15 Revised:2020-12-31 Online:2021-05-20 Published:2021-07-23

摘要/Abstract

摘要： 基于车辆-板式无砟轨道垂向耦合动力学模型，考虑两种不同的一系悬挂作用形式，比较了不同模型下车辆主要部件的位移幅频传递特性和各垂向作用力幅频传递特征的差异，分析了一系各力作用点位置的变化对转臂和车轴等部件的位移传递特征以及各悬挂力频域传递特性的影响程度，探讨了一系悬挂参数和惯性参数的随机性对一系力及轮轨力响应特征统计规律的影响。结果显示，相比于细化模型，采用基本模型，在高频范围，一系各部件的加速度特征和作用力特征的准确性会受到一定影响。转臂重心与转臂套圈中心间距离调整时，对一系各力传递特性的影响均较为明显，其他位置参数变化时，与该位置参数相邻的作用力传递函数受到较大程度影响，远离该位置参数的作用力传递特征受到的影响较小。

关键词: 一系悬挂, 局部细化, 传递特性, 作用力位置, 悬挂参数, 变异系数

Abstract: Based on the vertical dynamic model of the vehicle-slab track coupling system, considering two types of force elements of the primary suspension, the difference between the amplitude frequency transfer characteristics of the displacement of the main components and each vertical force are compared, and the change of the position of each force acting point is analyzed. The influence of the displacement transfer characteristics of the arm and wheelset, and the influence degree of the frequency domain transfer characteristics of the suspension forces, is discussed. The effects of the randomness of the main suspension parameters and inertia parameters on the statistical characteristics of the suspension force and the wheel rail force are discussed. The results show that the accuracy of the acceleration characteristics and the force characteristics of each component in high frequency range will be affected by the basic model compared to the refined model. When the distance between the arm’s gravity center and the arm’s ring center is adjusted, the influence on the transfer characteristics of each force is very obvious. When the position parameters change, the transfer function of the force adjacent to the position parameters is greatly influenced, and the transfer function of the force away from the position parameters is less influenced.

Key words: primary suspension, local refinement, transfer characteristics, point of force action, suspension parameters, coefficient of variation

中图分类号:

U270

徐宁, 李强, 任尊松, 查浩. 考虑一系悬挂局部细化的车辆垂向系统振动传递特性研究[J]. 机械工程学报, 2021, 57(10): 106-117.

XU Ning, LI Qiang, REN Zunsong, ZHA Hao. Study on the Vibration Transfer Characteristics of Vertical Vehicle System Considering Local Refinement of Primary Suspension[J]. Journal of Mechanical Engineering, 2021, 57(10): 106-117.

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考虑一系悬挂局部细化的车辆垂向系统振动传递特性研究

Study on the Vibration Transfer Characteristics of Vertical Vehicle System Considering Local Refinement of Primary Suspension

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