Vibration Reduction Design of Equipment on the Low-floor Tramcar's Roof

4th International Conference on Manufacturing and Industrial Technologies

机械制造;工业技术

Feng, Zunwei^1 ; He, Binbin^1

CRRC Nanjing Puzhen Co. Ltd., Bogie Design Department, Nanjing

210031, China^1

关键词: Coupling dynamic model;    Coupling dynamics;    Dynamic deflections;    Equipment supports;    Excitation sources;    Frequency ranges;    Vibration effect;    Vibration reductions;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/212/1/012004/pdf
DOI  :  10.1088/1757-899X/212/1/012004

学科分类：工业工程学

来源: IOP

【 摘 要 】

In order to suppress the influence of the excitation source of the roof equipment on the vibration of the vehicle body, a vibration reduction design scheme based on rigid and flexible coupling dynamic model is proposed. The finite element model is established, and the finite element analysis is used to calculate the car body mode. The dynamic model is established and the vibration mode is analyzed. The frequency range of the equipment is determined by the analysis result which is based on the vibration reduction theory. The rigid and flexible coupling dynamics model is established to optimize the equipment support frequency. The results show that when the frequency of the equipment is 10 Hz, the support point can obviously eliminate the vibration effect. The dynamic deflection of the equipment is less than 2 mm, and the vibration performance satisfies the design requirements.