液压减振器失效对跨座式单轨车辆动力学性能的影响分析

doi:10.3969/j.issn.1674-0696.2021.11.21

重庆交通大学学报（自然科学版） ›› 2021, Vol. 40 ›› Issue (11): 142-148.DOI: 10.3969/j.issn.1674-0696.2021.11.21

• 交通装备 • 上一篇

液压减振器失效对跨座式单轨车辆动力学性能的影响分析

杜子学，马加兵

(重庆交通大学城市轨道交通研究院，重庆 400074)

收稿日期:2019-12-10 修回日期:2020-05-19 发布日期:2021-11-24
作者简介:杜子学（1962—），男，河北邯郸人，教授，博士，主要从事车辆设计理论与方法方面的研究。E-mail：aaadzx@163.com 通信作者：马加兵（1994—），男，湖北武汉人，硕士研究生，主要从事车辆设计理论与方法方面的研究。E-mail：1285577056@qq.com
基金资助:
国家自然科学基金（51475062）

Impact Analysis of Hydraulic Shock Absorber Failure on the Dynamics Performance of Straddle Type Monorail Vehicle

DU Zixue, MA Jiabing

(Urban Rail Transit Research Institute, Chongqing Jiaotong University, Chongqing 400074, China)

Received:2019-12-10 Revised:2020-05-19 Published:2021-11-24

摘要/Abstract

摘要： 以某国产跨座式单轨车辆为研究对象，采用动力学仿真软件建立跨座式单轨系统动力学仿真模型，分析液压减振器不同失效工况对车辆动力学性能的影响。重点考察了倾覆系数、水平轮径向力、车体侧滚角和运行平稳性指数。分析结果表明：车辆在曲线轨道运行过程中，液压减振器不同位置失效工况下车辆的倾覆稳定性、抗脱轨稳定性与运行安全性均会变差，且发生工况五或工况六时，动力学性能最差，此时会严重影响到车辆的稳定运行，应减速停车疏散乘客；而车辆在直线轨道以最高运行车速75 km/h运行时，液压减振器不同的失效工况下车辆的横向和垂向平稳性与正常工况运行相比，横向平稳性影响较小，但对车辆的垂向平稳性影响较大。

关键词: 车辆工程；液压减振器；倾覆系数；抗脱轨稳定性；车体侧滚角

Abstract: Taking a domestic straddle type monorail vehicle as the research object, a dynamic simulation model of straddle type monorail was established by using dynamic simulation software, and the influence of different failure conditions of hydraulic damper on the performance of vehicle dynamics was analyzed. The overturning coefficient, the radial force of the horizontal wheel, the rolling angle of the car body and the running stability index were investigated. The analysis results show that the overturning stability, anti-derailment stability and running safety of the vehicle will be worse under the failure conditions of the hydraulic damper at different positions during the operation of the vehicle on the curve track. In case of condition 5 or 6, the dynamic performance is the worst, which will seriously affect the stable operation of the vehicle, so it is necessary to slow down, stop and evacuate the passengers. When the vehicle runs at the maximum running speed of 75KM/h on the straight track, the lateral and vertical stability of the vehicle under different failure conditions of the hydraulic shock absorber is compared with that under normal operation conditions, the lateral stability is less influenced, but the vertical stability of the vehicle is more affected.

Key words: vehicle engineering; hydraulic shock absorber; overturning coefficient; derailment stability; body roll angle

中图分类号:

U232

杜子学，马加兵. 液压减振器失效对跨座式单轨车辆动力学性能的影响分析[J]. 重庆交通大学学报（自然科学版）, 2021, 40(11): 142-148.

DU Zixue, MA Jiabing. Impact Analysis of Hydraulic Shock Absorber Failure on the Dynamics Performance of Straddle Type Monorail Vehicle[J]. Journal of Chongqing Jiaotong University(Natural Science), 2021, 40(11): 142-148.

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液压减振器失效对跨座式单轨车辆动力学性能的影响分析

Impact Analysis of Hydraulic Shock Absorber Failure on the Dynamics Performance of Straddle Type Monorail Vehicle

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