噪声与振动控制

›› 2009, Vol. 29 ›› Issue (6): 34-36.DOI: 10.3969/j.issn.1006-1355.2009.06.034

• 论文 • 上一篇    下一篇

《一种频域载荷识别的优化方法》

胡杰，张希农   

  1. （西安交通大学航天航空学院强度与振动教育部重点实验室/工程力学系，西安710049）
  • 收稿日期:2009-06-28 修回日期:1900-01-01 出版日期:2009-12-18 发布日期:2009-12-18
  • 通讯作者: 胡杰

《An Optimization Method of Load Identificationin Frequency Domain》

HU Jie，ZHANG Xi-nong   

  1. (Department of Engineering Mechanics/MOE Key Laboratory for Strength and Vibration,School of Aerospace, Xi’an Jiaotong University, Xi’an710049, China)
  • Received:2009-06-28 Revised:1900-01-01 Online:2009-12-18 Published:2009-12-18
  • Contact: HU Jie

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摘要：

从优化的角度出发，利用遗传优化算法得到频域载荷谱，使得其产生的响应谱与实际的测量结果之间的误差足够小，这样可以认为所得到的载荷谱也就反映了实际的激励，即达到了载荷识别的目的，仿真结果说明了这种优化方法的有效性。

关键词: 振动与波, 有限元, 优化, 遗传算法, 载荷识别

Abstract:

This paper proposed a new method of load identification based on optimization theory, the load spectrum is calculated by genetic algorithm, if the error between responses produced by this calculated load and have been measured is small enough, the optimized load spectrum could be considered as the real excitation，the numerical simulation result shows the effectiveness of this optimization method.

Key words: vibration and wave, finite element, optimization, genetic algorithm, load identification

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