摘要
综述了目前振动模态参数识别的频域方法、时域方法、时 频方法、基于小波分析与基于HHT变换的非平稳信号处理的时 频方法及基于模拟进化的方法的基本原则与具体做法 ,比较了各方法的优缺点及适用范围 。
The basic principle and technology of some methods,which including modal parameter identification in frequency and in time domain,non stationary signal process using wavelet analysis and HHT technology in time frequency domain and simulated evolution algorithm are introduced to identify modal parameter. The advantage, disadvantage and application range of each method are compared with each other.The future research direction of modal parameter identification is viewed.
出处
《华中科技大学学报(城市科学版)》
CAS
2002年第3期73-78,共6页
Journal of Huazhong University of Science and Technology
基金
国家自然科学基金会主任基金项目 ( 50 14 50 2 0 )
关键词
振动模态
参数识别
小波分析
vibration modal
parameter identification
wavelet analysis