噪声与振动控制2017，Vol.37Issue(6)：46-50,5.DOI:10.3969/j.issn.1006-1355.2017.06.009
可变外激励下制动器低频振动的实验与数值仿真
Experimental and Numerical Study on Low-frequency Vibration of Brakes with Variable External Excitation
张佳慧1
作者信息
- 1. 上海理工大学 土木工程系,上海 200093
- 折叠
摘要
Abstract
The low-frequency vibration of brakes under variable external excitation is studied experimentally and numerically. In the experiment, the mechanical parameters are changeable and the external excitation is variable, which is realized by using an external exciter with a waveform generator. The low-frequency data of the brake system is obtained. Then, a 3-DOF model is established to predict the dynamic behavior of the brake system. The numerical simulation is carried out using the event-driven method. The results of low-frequency vibration are compared with those of the experiment and the correctness and reliability of the numerical simulation are verified. The influence of the mechanical parameters and the external excitation on the low-frequency vibration is analyzed. It is shown that the low-frequency vibration of the brake system is sensitive to the variation of the mechanical parameters, and the pertinent selection of the external excitation can effectively suppress the low-frequency vibration of the brake system.关键词
振动与波/制动系统/外激励/低频振动/三自由度模型Key words
vibration and wave/brake system/external excitation/low-frequency vibration/3-DOF model分类
数理科学引用本文复制引用
张佳慧..可变外激励下制动器低频振动的实验与数值仿真[J].噪声与振动控制,2017,37(6):46-50,5.
