文献类型：期刊文献

中文题名：基于曲率模态理论的简支梁损伤辨识研究

英文题名：Damage Identification of Simply Supported Beam Based on the Theory of Curvature Mode

作者：张利伟[1,2];鲍鹏[1]

第一作者：张利伟

机构：[1]河南大学土木建筑学院;[2]新乡学院土木工程与建筑系

第一机构：河南大学土木建筑学院,河南开封475004

年份：2012

卷号：25

期号：3

起止页码：412-415

中文期刊名：信阳师范学院学报：自然科学版

收录：CSTPCD;;北大核心:【北大核心2011】；

基金：河南省科技攻关计划项目(112102310662)

语种：中文

中文关键词：曲率模态;损伤;位移模态;刚度

外文关键词：curvature mode ;injury ; displacement mode ; stiffness

摘要：选取结构中常见的构件——简支梁,利用有限元软件ANSYS建立有限元模型.通过模拟跨中损伤,分析模态振型位移值,得出曲率模态值.对比分析曲率模态在损伤处的变化规律,得出损伤与相应参数的关系.总结曲率模态在损伤处的应用规律,以期使曲率模态辨识损伤理论在其他结构中得到更好的应用.
A common structure--simply supported beam was selected to construct finite element model by ANSYS. Curvature mode was obtained by stimulating the damage of mid-span and analyzing modal displacement. Variation of curvature mode at damage region was analyzed and the relationship of injure and corresponding parameters was obtained. Finally, application law of curvature mode at injure region was summarized so that theory of curvature mode was better used at other structure.