摘要
利用结构单元刚度矩阵的特征值分解和组合,获得结构总体刚度矩阵的分解表达式。以结构刚度矩阵的分解式为基础,推广并改进基于特征值分解的结构损伤识别方法,以一个梁结构为例验证所提方法的可行性。
With the increasing demands for structural quality and reliability,damage identification via techniques that examine changes in measured structural vibration response is a very important topic of research.The damage detection methed based on the eigenvalue decomposition is improved by using a universal matrix disassembly technique.A new matrix disassembly technique is proposed firstly in respect that the previous disassembly techniques are all complex and not fit for program.In the presented approach,the di...
出处
《机械强度》
CAS
CSCD
北大核心
2010年第5期715-718,共4页
Journal of Mechanical Strength
关键词
损伤识别
矩阵分解
特征值
Damage identification
Matrix disassembly
Eigenvalue
