期刊文献+

特征值反问题的结构探伤方法 被引量:7

Inverse Eigenvalue Procedures for Damage Detection in Structure
在线阅读 下载PDF
导出
摘要 基于特征值反问题的思想,研究了杆和梁模型结构探伤的方法,包括确定损伤的位置和损伤程度。基于几何参数,建立了有限元或有限差分离散模型,可以由系统的一个特征对重构,这种重构可以推导出振动系统结构探伤的一类特征值反问题方法,并提出了由一个特征对进行结构探伤的方法。给出了固定-固定杆、固定-自由杆和悬臂梁系统的由一个特征对进行结构探伤的方法,并给出了数值算法和算例,证明了该方法的有效性。 This work is related to the damage detection in a structure including the location and severity of the damage.It is shown that for the fixed-fixed bar,fixed-free bar and the cantilever beam,their finite element or finite difference discrete models built on the basis of their geometric parameters can be reconstructed from one eigenpair,that is,from one eigenvalue and its respective eigenvector.This reconstruction permits the development of inverse eigenvalue procedures for damage detection in structures.The numerical algorithms and some numerical examples are also given.
作者 王正盛
出处 《振动.测试与诊断》 EI CSCD 北大核心 2010年第4期446-450,共5页 Journal of Vibration,Measurement & Diagnosis
基金 江苏省自然科学基金资助项目(编号:BK2006568) 南京航空航天大学基本科研业务费专项科研资助项目(编号:NS2010202)
关键词 结构探伤 特征值反问题 固定-固定杆 固定-自由杆 悬臂梁 damage detection inverse eigenvalue problem fixed-fixed bar fixed-free bar cantilever beam
  • 相关文献

参考文献14

  • 1Gladwell G M L.Inverse problems in vibration[M].2nd ed.Boston:Kluwer Academic Publishers,2004:417-425.
  • 2Jimenez R,Santos L,Kuhl N,et al.The reconstruction of a specially structured Jacobi matrix with an application to damage detection in rods[J].Computers and Mathematics with Applications,2005,49(11-15):1815-1823.
  • 3Jimenez R,Santos L,Kuhl N,et al.An inverse eigenvalue procedure for damage detection in rods[J].Computers and Mathematics with Applications,2004,47(4-5):643-657.
  • 4Lai E,Ananthasuresh G K.On the design of bars and besms for desired mode shapes[J].Journal of Sound and Vibration,2002,254(2):393-406.
  • 5张敬芬,赵德有.工程结构裂纹损伤振动诊断的发展现状和展望[J].振动与冲击,2002,21(4):22-26. 被引量:59
  • 6陈学前,陈大林,杜强,冯加权.结构基于振动损伤识别的发展概况[J].振动工程学报,2004,17(z2):701-704. 被引量:8
  • 7Nylen P,Uhlig F.Inverse eigenvalue problems associated with spring-mass systems[J].Linear Algebra and Its Application,1997,254(1-3):409-425.
  • 8Hearn G,Testa R.Modal analysis for damage detection in structure[J].Journal of Structural Engineering,1991,117(10):3 042-3 063.
  • 9Farahani K,Bahai H.An inverse strategy for relocation of eigenfrequencies in structural design,part I:first order approximate solutaions[J].Journal of Sound and Vibration,2004,274(3-5):481-505.
  • 10Braun S G,Ram Y M.Modal modification of vibrating systems:some problems and their solutions[J].Mechanical Systems and Signal Processing,2001,15(1):101-119.

二级参考文献66

共引文献70

同被引文献53

引证文献7

二级引证文献14

相关作者

内容加载中请稍等...

相关机构

内容加载中请稍等...

相关主题

内容加载中请稍等...

浏览历史

内容加载中请稍等...
;
使用帮助 返回顶部