Damaged Structural Vibration Analysis Using the Hamiltonian MatrixPerturbation Theory

摘要：

This paper proposes a Hamiltonian perturbation approach for analyzing the dynamiccharacteristics of the damaged structure.Firstly,structural vibration governing equation istransformed to the general expression of state variables composed of displacement and momentum.On the basis of the conjugate symplectic orthogonal relation,the first-,and second-order perturbationexpression of the damaged structural eigensolution are obtained.Finally,the numerical simulationand cantilever experiment prove the effectiveness of this approach.

关键词： Structural vibration perturbation method Hamiltonian system

作者: L.Liu F.Z.Xuan

作者单位: School of Mechanical and Power Engineering,East China University of Science and Technology,Shanghai,200237 China

会议类型: 国际会议

会议名称: 2008 International Conference on Advances in Product Development and Reliability(2008年产品开发与可靠性进展国际会议)

会议地点: 成都

会议语种:英文

在线出版日期: 2008-08-04（万方平台首次上网日期，不代表论文的发表时间）