基于单元残余能量灵敏度的结构损伤识别

吴合良;谢居静;熊 造

振动与冲击 ›› 2012, Vol. 31 ›› Issue (13) : 105-107.

PDF(893 KB)
PDF(893 KB)
振动与冲击 ›› 2012, Vol. 31 ›› Issue (13) : 105-107.
论文

基于单元残余能量灵敏度的结构损伤识别

  • 吴合良1,谢居静2,熊 造1
作者信息 +

ELEMENT RESIDIAL ENERGY SENSITIVITY-BASED STRUCTURAL DAMAGE IDENTIFICATION

  • WU He-liang1, Xie Ju-jing2, Xiong Zao1
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摘要


摘 要:在定义单元残余能量基础上进行单元残余能量的灵敏度分析,提出基于单元残余能量灵敏度分析的结构损伤识别方法,建立结构损伤识别方程组。通过解方程,求得损伤系数向量,便可同时识别结构的损伤位置及损伤程度。仿真结果表明,本文提出的方法对各损伤工况不但能准确定位,而且能有效识别出损伤程度,识别精度较高。


Abstract

Abstract: The element residual energy is defined, then, its sensitivity is analyzed.Furthermore, the structural damage identification method based on the sensitivity of element residual energy is presented, responding equations are established. Damage location and severity can be simultaneously determinated by solving the equation. Numerical simulation studies show that the proposed method is effective in different damage cases.

关键词

残余能量 / 灵敏度 / 损伤识别

Key words

residual energy / sensitivity / damage identification

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导出引用
吴合良;谢居静;熊 造. 基于单元残余能量灵敏度的结构损伤识别[J]. 振动与冲击, 2012, 31(13): 105-107
WU He-liang;Xie Ju-jing;Xiong Zao. ELEMENT RESIDIAL ENERGY SENSITIVITY-BASED STRUCTURAL DAMAGE IDENTIFICATION[J]. Journal of Vibration and Shock, 2012, 31(13): 105-107

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