Stochastic Responses of Viscoelastic System with Real-Power Stiffness under Randomly Disordered Periodic Excitations

Wei Xu, Hongqi Zang, Di Liu

科研成果: 书/报告/会议事项章节会议稿件同行评审

摘要

The stochastic dynamic responses of viscoelastic systems with real-power exponents of stiffness term under randomly disordered periodic excitations are studied. The assumed viscoelastic forces depend on the past history of motion via convolution integrals over an exponentially decaying kernel functions. The method of multiple scales is used to derive the equations of modulation of amplitude and phase. The changes of the shape of resonance curve are obtained with real-power exponents of stiffness term and viscoelastic parameters which are confirmed numerically. Theoretical analysis and numerical simulations show that, as the intensity of the random excitation increases, the steady state solution changes from a limit cycle to a diffused limited cycle. Under some conditions, the system may have two steady state solutions and the phenomenon of jumps will happen between them under the random excitations.

源语言英语
主期刊名Vulnerability, Uncertainty, and Risk
主期刊副标题Quantification, Mitigation, and Management - Proceedings of the 2nd International Conference on Vulnerability and Risk Analysis and Management, ICVRAM 2014 and the 6th International Symposium on Uncertainty Modeling and Analysis, ISUMA 2014
编辑Jim W. Hall, Siu-Kui Au, Michael Beer
出版商American Society of Civil Engineers (ASCE)
1836-1845
页数10
ISBN(电子版)9780784413609
DOI
出版状态已出版 - 2014
活动2nd International Conference on Vulnerability and Risk Analysis and Management, ICVRAM 2014 and the 6th International Symposium on Uncertainty Modeling and Analysis, ISUMA 2014 - Liverpool, 英国
期限: 13 7月 201416 7月 2014

出版系列

姓名Vulnerability, Uncertainty, and Risk: Quantification, Mitigation, and Management - Proceedings of the 2nd International Conference on Vulnerability and Risk Analysis and Management, ICVRAM 2014 and the 6th International Symposium on Uncertainty Modeling and Analysis, ISUMA 2014

会议

会议2nd International Conference on Vulnerability and Risk Analysis and Management, ICVRAM 2014 and the 6th International Symposium on Uncertainty Modeling and Analysis, ISUMA 2014
国家/地区英国
Liverpool
时期13/07/1416/07/14

指纹

探究 'Stochastic Responses of Viscoelastic System with Real-Power Stiffness under Randomly Disordered Periodic Excitations' 的科研主题。它们共同构成独一无二的指纹。

引用此