您的位置:首页  > 论文页面

基于模型试验与傅里叶算法的结构模态参数识别方法研究

发表时间:2012-01-31  浏览量:1462  下载量:444
全部作者: 时丹,孙瑶
作者单位: 辽宁工程技术大学建筑工程学院
摘 要: 给出一种基于模型试验与傅里叶变换的结构模态参数识别方法。首先通过模型试验获得结构的动态响应,再利用傅里叶变换获得结构自振频率,最后通过数值模拟模型试验获得结构频率,并与傅里叶变换获得的结构频率相比较,以此确定结构自振频率。算例验证结果表明:研究所提出的模态参数识别方法可行有效,可以应用于土木工程结构健康监测系统中。
关 键 词: 工程结构;Matlab;模型试验;傅里叶变换;频率;损伤识别
Title: Research an identification structural modal parameters method based on model test and Fourier transform
Author: SHI Dan, SUN Yao
Organization: College of Architecture and Engineering, Liaoning Technical University
Abstract: In this paper a method to identify the modal parameters of structure based on model test and Fourier transform is proposed. Structural dynamic response is obtained by model test and natural frequencies are calculated by Fourier transform. Finally, comparing natural frequencies between model test and Fourier transform, the real structural natural frequencies are confirmed. The result of numerical simulation shows that the proposed method for identifying structural modal parameters is feasible and effective, and can be applied to structural health monitoring system.
Key words: engineering structure; Matlab; model test; Fourier transform; frequency; structural damage detection
发表期数: 2012年1月第2期
引用格式: 时丹,孙瑶. 基于模型试验与傅里叶算法的结构模态参数识别方法研究[J]. 中国科技论文在线精品论文,2012,5(2):170-176.
 
0 评论数 0
暂无评论
友情链接