基于柔度矩阵法的结构损伤识别

基于柔度矩阵法的结构损伤识别

杨华

吉林大学数学研究所, 长春 130012；长春理工大学应用数学系, 长春 130022

收稿日期:2007-06-19 修回日期:1900-01-01 出版日期:2008-03-26 发布日期:2008-03-26
通讯作者: 杨华

Structural Damage Identification Based on Flexibility Matrix Method

YANG Hua

Institute of Mathematics, Jilin University, Changchun 130012, China；Department of Applied Mathematics, Changchun University of Science and Technology, Changchun 130022, China

Received:2007-06-19 Revised:1900-01-01 Online:2008-03-26 Published:2008-03-26
Contact: YANG Hua

摘要/Abstract

摘要： 针对工程结构的健康监测, 提出一种基于柔度矩阵法的损伤识别方法, 只需结构的低阶模态参数便可识别结构的损伤位置和程度, 克服了实际应用中高阶模态参数较难获得的缺陷, 并通过一个悬臂结构损伤识别的数值模拟验证了该方法的有效性.

关键词: 损伤识别, 柔度矩阵, 悬臂梁

Abstract: Damage identification based on flexibility matrix method is suggested for engineering structures health monitoring. This method only requires low order modal parameters of structure to locate damage and identifies the degree of damage to overcome high order modal parameters being more difficult to obtain in practical application. The efficiency of the method is validated by numerical simulation of a damage cantilever beam.

Key words: damage identification, flexibility matrix, cantilever beam

中图分类号:

O346.5

杨华. 基于柔度矩阵法的结构损伤识别[J]. J4, 2008, 46(02): 242-244.

YANG Hua. Structural Damage Identification Based on Flexibility Matrix Method[J]. J4, 2008, 46(02): 242-244.

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