结构损伤检测是建筑、机械等工程领域中的一大热点,通过振动信号对结构进行整体评估,了解结构当前的状态,并基于此为结构的运营维护提供参考依据,具有重要工程意义。递归图具有能反映结构内部特性的特点,递归图定量分析方法常用于分析结构的信号递归图,本文使用五层钢框架模型实验探讨了利用该方法进行结构损伤识别的可行性。
Abstract
Structural damage detection is a hot spot in construction, machinery and other engineering fields. It is of great engineering significance to evaluate the structure through vibration signals, understand the current state of the structure, and provide reference basis for the operation and maintenance of the structure. The recurrence plots have the characteristic of being able to reflect the internal characteristics of the structure, and the Recurrence Quantification Analysis （RQA） method is often used to analyze the recurrence plots of the structure. This paper investigated the feasibility of the method in structural damage identification by using the experimental test of a five-story steel frame model.
关键词
振动信号 /
递归图 /
定量分析方法 /
结构损伤 /
实验验证
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Key words
vibration sigals /
recurrence plots /
RQA /
structure damage /
experimental verification
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参考文献
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脚注
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基金
国家重点研发计划项目（2019YFE0112600,2018YFE0125400）; 国家自然科学基金项目（U1709216,52078459）; 浙江省自然科学基金（LZ22E080005）
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