基于曲率模态理论的悬臂梁损伤识别的理论及实验研究
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- 英文论文题名：Theoretical and experimental study on damage identification of a cantilever beam based on curvature mode theory
- 论文作者：孔成 ; 续秀忠 ; 武永顶
- 英文论文作者：Kong Cheng ; Xu Xiuzhong ; Wu Yongding ; Shanghai Automobile Gear Works ; Logistics Engineering College of Shanghai Maritime University
- 年：2016
- 作者机构：上海汽车变速器有限公司;上海海事大学物流工程学院;
- 论文关键词：损伤检测 ; 曲率模态 ; 悬臂梁 ; ANSYS ; DASP
- 英文论文关键词：Damage detection ; Curvature modes ; Cantilever ; ANSYS ; DASP
- 会议召开时间：2016-08-12
- 会议录名称：第十六届全国模态分析与试验学术会议论文集
- 语种：中文
- 分类号：TU317
- 学会代码：ZGZH
- 会议名称：第十六届全国模态分析与试验学术会议
- 会议地点：中国天津
- 主办单位：中国振动工程学会模态分析与试验专业委员会
- 学会名称：中国振动工程学会
- 页数：12
- 文件大小：862k
- 原文格式：D
- 会议级别：全国
摘要
研究了适用于梁结构的基于曲率模态理论的损伤识别方法。以一悬臂梁结构有限元模型为数值算例,考虑悬臂梁结构的单构件损伤工况,分别采用了模态频率、位移振型模态和曲率模态三种指标来进行损伤识别的研究。ANSYS仿真及DASP模态实验分析表明,曲率模态方法能较好地进行损伤定位,并能对损伤程度给出定性的描述。
A damage identification approach applied aptly in beams based on the curvature mode theory was studied in this paper. With a cantilever beam structure finite element model as a numerical example,consider the structure of a single member damage,respectively,using the modal frequency,displacement mode shape and curvature modal to study the damage identification. Numerical experiments show that the curvature modal method can locate the damage,and is able to give a qualitative description of the extent of damage.
A damage identification approach applied aptly in beams based on the curvature mode theory was studied in this paper. With a cantilever beam structure finite element model as a numerical example,consider the structure of a single member damage,respectively,using the modal frequency,displacement mode shape and curvature modal to study the damage identification. Numerical experiments show that the curvature modal method can locate the damage,and is able to give a qualitative description of the extent of damage.
引文
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[11]裴强,郭迅,张敏政.桥梁健康监测及诊断研究综述.地震工程与工程振动,2003,23(2):61~67
[2]Vandiver.J.K.Detection of Structural Failure on Fixed Platform by Measurement of Dynamic Response.Proceeding of the7thAnnual offshore Technology Conference,1975
[3]M.M Abedel Wahab.Damage Detection in Bridges Using Model Curvatures:Application to A Real Damage Scenario.Journal of Sound and Vibration,1991,226(2)
[4]刘效尧,蔡键,刘晖.桥梁损伤诊断,北京:人民交通出版社,2002
[5]陈长征,罗跃纲,白秉三等.结构损伤检测与智能诊断,哈尔滨:哈尔滨工业大学出版,1996
[6]李国强,李杰.工程结构动力检测理论与应用.北京:科学出版社,2002
[7]秦权.桥梁结构的健康监测.中国公路学报,2000,13(2)
[8]彭华,游春华,孟勇.模态曲率差法对梁结构的损伤诊断.工程力学,2006
[9]余寿文,冯西桥.损伤力学.北京:清华大学出版社,1997
[10]唐小兵.结构损伤识别及数值模拟:[博士学位论文].武汉:武汉理工大学,2004
[11]裴强,郭迅,张敏政.桥梁健康监测及诊断研究综述.地震工程与工程振动,2003,23(2):61~67