摘要
将车体与构架简化为两自由度系统,基于两自由度系统的振动传递规律,分析得到轨道车辆车体和构架的幅频特性及基础与车体和构架的振动传递率,分析了一系、二系的阻尼比及刚度等悬挂参数对车体和构架的振动影响规律。研究表明:一系、二系阻尼主要影响构架和车体的振动,一系刚度主要影响构架的振动,二系刚度对构架和车体的振动影响都不大。
The body and frame of a car were simplified into a two-degree-of-freedom system,and based on its vibration transfer law,analysis was carried out to abtain the amplitude and frequency characteristics of the rail car body and frame and the vibration transfer rate of the foundation and the car body and frame.The influence of suspension parameters such as damping ratio and stiffness of the first and second series on the vibration of the car body and frame was studied.The results show that the damping of the first and second series mainly affects the vibration of the frame and the car body respectively,the stiffness of the first series mainly affects the vibration of the frame,while the stiffness of the second series has little effect on the vibration of the frame and the car body.
作者
熊聪
王建斌
屈升
XIONG Cong;WANG Jianbin;QU Sheng(State Key Laboratory of Traction Power,Southwest Jiaotong University,Chengdu 610000,China)
出处
《机械制造与自动化》
2022年第6期169-172,共4页
Machine Building & Automation
基金
国家自然科学基金资助项目(11790282)。
关键词
轨道车辆
两自由度系统
幅频特性
振动传递
垂向振动
悬挂参数
rail vehicle
two degrees of freedom system
amplitude-frequency characteristics
vibration transfer
vertical vibration
suspension parameters
