基于小波包分解的框架结构损伤识别研究  

Study on damage detection in frame structure based on wavelet packet analysis

作　　者：杜志军[1] 刘国辉[1] 袁颖[1] 

机构地区：[1]石家庄经济学院勘查技术学院

出　　处：《山西建筑》2009年第8期69-70,共2页Shanxi Architecture

摘　　要：应用小波包分解技术,构造了基于综合能量曲率差的损伤识别敏感参数,并对结构的损伤定位和损伤定量进行了研究,结合一个三维框架模型进行了损伤工况的数值模拟,研究结果表明文中提出的损伤识别方法具有较好的损伤识别能力。Applying the wavelet packets decomposition techniques,sensitive parameters for damage identification based on the comprehensive energy curvature difference were constructed, and the structural damage localization and quantification were investigated the numerical simula- tion of some damage cases for a 3-dimentional frame structure was carried out. Experimental results indicate that the damage identification method presented has good performance for structural damage identification.

关 键 词：小波包 能量曲率差 损伤识别 框架结构 

分 类 号：TU318[建筑科学—结构工程]