Eigenfrequency loci crossings, veerings and mode splittings of overhanged cantilevers

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	Eigenfrequency loci crossings, veerings and mode splittings of overhanged cantilevers
	Liu Y; Zhang Y(张吟)
会议录名称	Proceedings of the 26th International Congress on Sound and Vibration, ICSV 2019
	2019
会议名称	26th International Congress on Sound and Vibration, ICSV 2019
会议日期	July 7, 2019 - July 11, 2019
会议地点	Montreal, QC, Canada
摘要	Eigenfrequency loci veering, which indicates strong mode coupling and sometimes mode localization, is a much sought-after property in the applications of mass sensing and opto/electromechanics. A weak physical coupling is the mechanism responsible for the eigenfrequency loci veering and overhang is a widely used structure to realize such mechanism. A continuum model, which is more accurate and straightforward as compared with the discrete models, is presented for the structure of two overhanged cantilevers.The eigenvalue problem formulation based on this continuum model leads to a direct computation of the eigenfrequencies, which does not involve any numerical discretization procedure. A comprehensive study on the eigenfrequency loci veerings and mode splittings of the overhanged structure is presented. The influences of various parameters on the eigenfrequency loci crossing and veerings are also systematically studied. An efficient optimum design tool for the eigenfrequency loci veering of an overhanged structure is provided by the continuum model together with a direct computation method © Proceedings of the 26th International Congress on Sound and Vibration, ICSV 2019. All rights reserved.
关键词	Crossing Eigenfrequency Mode splitting Veering
ISBN号	9781999181000
收录类别	EI
语种	英语
文献类型	会议论文
条目标识符	http://dspace.imech.ac.cn/handle/311007/85113
专题	非线性力学国家重点实验室
作者单位	1.Faculty of Information and Automation, Kunming University of Science and Technology, Kunming, 650051, China 2.State Key Laboratory of Nonlinear Mechanics (LNM), Institute of Mechanics, Chinese Academy of Sciences, Beijing, 100190, China 3.School of Engineering Science, University of Chinese Academy of Sciences, Beijing, 100049, China
推荐引用方式 GB/T 7714	Liu Y,Zhang Y. Eigenfrequency loci crossings, veerings and mode splittings of overhanged cantilevers[C]Proceedings of the 26th International Congress on Sound and Vibration, ICSV 2019,2019.

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