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基于AR模型的剪切型结构数据挖掘损伤诊断方法

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摘要 结构健康监测中采用的损伤诊断方法大多仅能在程度上对损伤进行相对判断,不能准确地判断损伤产生的数值。从剪切型框架结构的加速度响应信号出发,构建AR数据挖掘模型。通过提取AR模型的自回归系数达到结构刚度识别的目的,以刚度值作为判定结构损伤程度的定量指标。利用三层框架结构进行了试验验证,结果表明,该方法不仅能够精确地定位损伤及进行损伤程度判断,而且能够区分由结构质量改变和刚度损失所造成结构损伤情况的不同。
出处 《信息系统工程》 2023年第11期31-34,共4页
基金 2022年度湖州职业技术学院校级规划课题“基于数据挖掘技术的剪切型结构损伤识别方法研究”(课题编号:2022ZD02)。
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