文献类型：期刊文献

中文题名：不完整测量条件下检测桁架结构损伤的一种方法

英文题名：DAMAGE DETECTION FOR TRUSS STRUCTURES USING INCOMPLETE MODAL PARAMETERS

作者：杨秋伟[1]

机构：[1]绍兴文理学院土木工程系

年份：2010

期号：1

起止页码：1

中文期刊名：机械强度

外文期刊名：Journal of Mechanical Strength

收录：CSTPCD、、Scopus、CSCD2011_2012、北大核心2008、北大核心、CSCD

基金：浙江省教育厅科研计划项目(20070503)~~

语种：中文

中文关键词：损伤检测;残余力向量;固有频率;灵敏度

外文关键词：Damage detection; Residual force vector; Natural frequency; Sensitivity

中文摘要：提出一种利用不完整测量的模态数据检测桁架结构损伤的方法。首先采用改进的残余力向量法预先评估可能的损伤区域,在此基础上再利用特征值灵敏度法精确判断损伤位置和求解损伤程度。以一个平面桁架结构为算例验证该方法。结果表明,文中所提方法能在测量数据不完整的条件下成功识别出桁架结构的损伤情况。

外文摘要：Damage detection of truss structures using incomplete measurement modal parameters is studied. The developed theory approaches the damage location and extent problem in a decoupled fashion. First, the improved residual force method is used to determine the probable damaged elements. With probable location determined, the natural frequency sensitivity technique is employed to identify the exact location and the severities of the damaged members. The proposed method is verified on a plane truss structure. Results show that this two-stage damage identification procedure forms a promising method for damage identification of truss structures.