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基于随机动力响应时程统计指标的结构损伤初步识别
Authors
施伟
王子豪
肖青松
雷家艳
Publication date
8 October 2019
Publisher
Abstract
本文以八层剪切型钢框架模型在白噪声激励作用下的随机振动实验为基础,分别从结构加速度响应的均值、方差、偏度、峰度、概率密度函数和累积分布函数等多个统计特征,对结构无损及9种模拟损伤工况进行识别,结果表明:结构随机振动加速度响应时程的偏度和峰度对结构损伤的表征效果不明显,而概率密度函数能初步判别损伤,方差指标在进行损伤判别的基础上,具有良好的损伤定位能力.国家自然科学基金青年科学基金项目(51508486)福建省自然科学基金青年创新基金项目(2016J05136)厦门市交通基础设施智能管养工程技术研究中心开放基金项目(TCIMI201806)~
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Last time updated on 20/11/2020