结构损伤动力检测与健康监测研究现状与展望  

A SUMMARY REVIEW AND ADVANTAGES OF VIBRATION-BASED DAMAGE IDENTIFICATION METHODS IN STRUCTURAL HEALTH MONITORING

作　　者：朱宏平[1,2] 余璟[1,2] 张俊兵[1,2] 

机构地区：[1]华中科技大学土木工程与力学学院,湖北武汉430074 [2]华中科技大学控制结构湖北省重点实验室,湖北武汉430074

出　　处：《工程力学》2011年第2期1-11,17,共12页Engineering Mechanics

基　　金：国家自然科学基金项目(50778077);国家杰出青年科学基金项目(50925828)

摘　　要：基于动力特性的结构损伤检测方法在过去几十年中得到了迅猛发展。该技术的核心思想在于结构的振动特性(比如频率、振型、模态阻尼等)是结构物理参数(如质量、阻尼和刚度)的函数,结构损伤即意味着结构物理参数的改变,而物理参数的改变必然引起结构振动特性的改变。该文介绍了结构健康监测与损伤动力检测方法的涵义、应用现状和分类方法。对基于动力特性的结构损伤检测方法和识别算法做了重点介绍,分析了各种方法的优点和不足之处。最后对有待进一步研究的问题和结构损伤检测方法发展趋势进行了展望。The vibration-based damage identification method has been rapidly developed in the past few decades.The basic idea behind this technology is that the vibration characteristics（such as frequency,mode shape,modal damping,etc.） are functions of the physical properties of the structure（such as mass,damping and stiffness）.Therefore,changes in the physical properties will cause detectable changes in the vibration characteristics.In this paper,the meaning,application status and classification of vibration-based damage identification methods in structural health monitoring are described.The structural damage detection methods based on dynamic characteristics and recognition algorithms are presented,and their advantages and shortcomings are analyzed.Finally,some topics which are worth studying further and the future trends for damage detection of civil engineering structures are proposed.

关 键 词：健康监测 损伤检测 动力特性 振动 算法 

分 类 号：TU312[建筑科学—结构工程]