试验模态分析技术的进展

本文对试验模态分析技术的进展,特别是80年代发展起来的有关新技术进行了综合评述。主要内容有:试验激振技术、频响函数估计方法、试验测试设备、以及各种模态识别方法,包括单输入/多输出和多输入/多输出识别的时域和频域方法。文中强调了试验模态分析技术各环节之间的相互联系、相互影响,对于80年代已成为模态识别主流的多输入/多输出各种方法(包括作者发展的几种方法),用统一方法作了描述。最后提出了若干值得进一步研究的方向。

The Advances in Experimental Modal Analysis

This Paper gives an review of the advances of experimental modal analysis developed in the past 15 years, especially in the 1980's. The recent development of dynamic measurement technologies, including excitation methods and data acquisition analysis frequency response function estimation, and measurement systems are presented. Several different time-domain and frequency-domain modal identification methods of single-input/multiple-output and multiple-input/multiple-output systems are described by unified approach. The paper emphasizes the interrelation between different aspects of the modal analysis. Some research directions are proposed at the end of the paper.