摘要
采用时频分布方法在时频域对系统的非线性时变特性进行研究 ,识别了系统的动态固有特性 ,并与 ARMA法和 Hilbert法进行比较 。
In this paper,the gear transmission system response is measured at different rotating speed ,and the system vibration characteristics are identified on the basis of dynamic analysis theory .The natural frequency and natural mode etc. are detected by means of the ARMA, Hilbert and time-frequency distribution . It is shown that the time-frequency distribution method appears relatively stable in identification effect .Specially ,it is accurate to be used to identify high order mode. It is more effective for analyzing the gear system and revealing its nature than that only in time domain or frequency domain , and it is worthy to be spread in application.
出处
《中国机械工程》
EI
CAS
CSCD
北大核心
2001年第7期738-740,共3页
China Mechanical Engineering
基金
航空科学基金资助项目(94C53092)
关键词
齿轮传动系统
动态固有特性
时频分布
系统辨识
gear transmission systemdynamic natural characteristictime-frequency distributionidentification
