摘要
基于摄动理论,通过考虑结构参数修改量高阶项的影响,推导了基于单元模态应变能的结构损伤评估方法;数值仿真结果表明,在结构多种损伤情况下,损伤定位准确、程度评估可靠,具有实际应用价值。
An improved structural damage detection algorithm based on the perturbation theory is developed in this paper. It is proposed to detect structural damages by considering the high modifications of structural parameter. Numerical experimental results illustrate that this method is simple, accurate and reliable for damage location and detection.
出处
《铁道学报》
EI
CAS
CSCD
北大核心
2005年第5期92-95,共4页
Journal of the China Railway Society
基金
铁道部科技司科技发展计划项目(2003G035)
关键词
摄动理论
结构参数
模态应变能
损伤诊断
perturbation theory
structural parameter
modal strain energy
damage detection
