振动的等效力传递路径分析方法研究  

Research on Vibration's Equivalent Forces Transfer Path Analysis Method

作　　者：潘运平[1] 颜为光 王飞[1] 

机构地区：[1]武汉理工大学机电工程学院,湖北武汉430070

出　　处：《机械设计与制造》2018年第1期36-39,共4页Machinery Design & Manufacture

摘　　要：利用经典传递路径分析方法预测机械系统的振动响应和计算不同振源的贡献,不仅激励力的实时测量非常困难,而且拆解系统的工作非常繁琐耗时。为解决该问题,在经典TPA方法中对每个振源均引入一组等效力代替激励力来表征该振源激励,并利用正则化方法解决导纳矩阵病态问题,从而改进经典TPA方法。通过搭建电机工作平台进行实验验证,结果表明,正则化方法可以有效解决导纳矩阵病态问题,改进方法即振动的等效力传递路径分析方法可以准确地预测振动响应和计算振源贡献。When classical Transfer Path Analysis method is used to predict the vibration response of the mechanical system and evaluate the contributions of different vibration sources, the real-time measurement of the excitation forces is very difficult and disassembling the system is very cumbersome and time-consuming In order to solve this problem, the classical TPA method is improved by introducing a set of equivalent forces for every vibration source to substitute the excitation force to characterize the excitation of the source and the regularization method is used to solve the ill-posed problem of admittance matrix. A motor working platform is constructed and verify experiments are carried out, the results show that the regularization method can effectively solve the ill-posed problem of the admittance matrix and the improved method, which is vibration＇s equivalent forces transfer path analysis method, can accuratelypredict the vibration response and evaluate the contributions of the vibration sources.

关 键 词：振动 等效力 传递路径分析 正则化 

分 类 号：TH16[机械工程—机械制造及自动化]