摘要
结构损伤识别方法能够对结构进行损伤定位和损伤程度识别,是目前结构检测与鉴定的重要方法。介绍了基于动力特性结构损伤识别的4种主要指标,即固有频率指标、振型指标、曲率模态指标和模态应变能指标。分析了各类损伤识别指标的识别原理、特点以及应用情况,并总结了四类指标的应用条件。
Structural damage identification method ca be used to locate and identify the damage degree of the structure. The method is an important method of structural detection and identification. Four main indexes of structural damage identification based on dynamic characteristics is introduced, including natural frequency index, mode shape index, curvature mode index and modal strain energy index. The identification principle, characteristics and application of various damage identification indexes are analyzed, and the application conditions of four kinds of indexes are summarized.
作者
侯永乐
李传梁
常品要
Hou Yongle;Li Chuanliang;Chang Pinyao(School of Non-commissioned Officer,Space Engineering University,Bejing 102249,China)
出处
《山西建筑》
2022年第15期74-77,共4页
Shanxi Architecture
关键词
动力特性
损伤识别
曲率模态
模态应变能
dynamic characteristic
damage identification
modal curvature
modal strain energy
