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DAMAGE DETECTION FOR FRAME STRUCTURE USING CURVATURE MODE SHAPES
Author(s): 
Pages: 81-86
Year: Issue:  2
Journal: JOURNAL OF DYNAMICS AND CONTROL

Keyword:  损伤检测刚架结构曲率模态振型动力特性参数;
Abstract: 结构损伤前后动力特性的变化来快速、直接、方便地判定损伤的存在、程度及位置.本文采用曲率模态对刚架结构的损伤检测进行了研究.首先用有限元法计算出结构的位移模态振型,然后用差分法计算出曲率模态振型.数值模拟结果表明:曲率模态振型对结构的损伤敏感,可同时确定结构损伤的存在、程度和位置,并且可以用于结构多位置损伤的检测.实验结果证实了数值模拟结论.
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