摘要
本文推导出关于结构应变的一阶交分关系,从中揭示出结构损伤定位的合理方案.
The damage locating method based structural dynamics parameter has been a focus problem, but has no feasible solving method until now. The present paper finds that the variable for locating damage should be a type of local variable, and meet the following two basic requirements: 1) to be sensitive to local damage. 2) to be a monotonous function of location coordinates. The first order variational relationship about structural strain is found, from which a feasible mothod for locating damage can be obtained.
出处
《力学与实践》
CSCD
北大核心
1999年第4期62-63,共2页
Mechanics in Engineering
基金
国家自然科学基金
航空基金
攀登计划重大项目
国际合作资助
关键词
应变模态
位移模态
损伤定位
动力特性
strain modal shape, displacement modal shape, damage location