IMECH-IR  > 非线性力学国家重点实验室
Eigenfrequency loci crossings, veerings and mode splittings of overhanged cantilevers
Liu Y; Zhang Y(张吟)
Source PublicationProceedings of the 26th International Congress on Sound and Vibration, ICSV 2019
2019
Conference Name26th International Congress on Sound and Vibration, ICSV 2019
Conference DateJuly 7, 2019 - July 11, 2019
Conference PlaceMontreal, QC, Canada
AbstractEigenfrequency 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.
KeywordCrossing Eigenfrequency Mode splitting Veering
ISBN9781999181000
Indexed ByEI
Language英语
Document Type会议论文
Identifierhttp://dspace.imech.ac.cn/handle/311007/85113
Collection非线性力学国家重点实验室
Affiliation1.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
Recommended Citation
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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