航空学报 > 1986, Vol. 7 Issue (6): 640-644

振动系统参数识别的三个新方法

邵成勋, 黄文虎, 刘华, 赵美德, 王德明   

  1. 哈尔滨工业大学
  • 收稿日期:1986-03-12 修回日期:1900-01-01 出版日期:1986-12-25 发布日期:1986-12-25

THREE NEW APPROACHES FOR THE PARAMETER IDENTIFICATION OF A UIBRATING SYSTEM

Shao Chengxun, Huang Wenhu, Liu Hua, Zhao Meide, Wang Deming   

  1. Harbin Institute of Technology
  • Received:1986-03-12 Revised:1900-01-01 Online:1986-12-25 Published:1986-12-25

摘要:

近年来,振动系统参数识别技术受到了越来越多的重视。振动系统参数识别的谱分析方法(频域方法)发展得比较成熟。但它也有一些缺点,其中之一是需要了解激振力。

Abstract:

Described in this paper are three new approches for the parameter identification of a vibrating system, devoted to improve the accuracy of identifying modal and physical parameters from measurements with noisy signals and to identify the distributed structural parameters directly from response signals without resort to applied force information. The techniques presented here-in are the Maximum Likelihood Method, the Prony Identification Algorithm, and the Finite Element Inverse Method.