Mathematical Modeling and Simulation of Suspended Equipment Impact on Car Body Modes

A passenger railway vehicle’s lightweight design is an efficient technique of reducing energy consumption and dynamic forces between wheel rail. However, light results in resonant vibration a car body. To restrain vibration, correlation the suspended equipment variables body’s modal frequency was investigated this paper. rigid–flexible general model developed to examine impacts different under chassis based on mass, location, body mode. In addition, numerical validated through experimental result terms ride quality. The demonstrate that underframe equipment’s suspension characteristics have significant impact mode body, particularly first bending Equipment with considerable mass should be near center optimize high-frequency bending. weight has frequency. heavy low enough promote transmissibility improve