IMECH-IR  > 非线性力学国家重点实验室
Eigenfrequency loci crossings, veerings and mode splittings of two cantilevers coupled by an overhang
Zhang Y(张吟)1,2; Petrov Y3,4; Zhao YP(赵亚溥)1,2
Source PublicationJournal of Physics Communications
2020-08-01
Volume4Issue:8Pages:085010
ISSN2399-6528
Abstract

Abstract 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.

Keywordeigenfrequency crossing veering mode splitting
DOI10.1088/2399-6528/abab3f
Language英语
Ranking1
Citation statistics
Document Type期刊论文
Identifierhttp://dspace.imech.ac.cn/handle/311007/85563
Collection非线性力学国家重点实验室
Affiliation1.State Key Laboratory of Nonlinear Mechanics (LNM), Institute of Mechanics, Chinese Academy of Sciences, Beijing 100190, People’s Republic of China
2.School of Engineering Science, University of Chinese Academy of Sciences, Beijing 100049, People’s Republic of China
3.St-Petersburg State University, St-Petersburg, 198504, Russia
4.Institute of Problems of Mechanical Engineering, St-Petersburg, 199178, Russia
Recommended Citation
GB/T 7714
Zhang Y,Petrov Y,Zhao YP. Eigenfrequency loci crossings, veerings and mode splittings of two cantilevers coupled by an overhang[J]. Journal of Physics Communications,2020,4(8):085010.
APA Zhang Y,Petrov Y,&Zhao YP.(2020).Eigenfrequency loci crossings, veerings and mode splittings of two cantilevers coupled by an overhang.Journal of Physics Communications,4(8),085010.
MLA Zhang Y,et al."Eigenfrequency loci crossings, veerings and mode splittings of two cantilevers coupled by an overhang".Journal of Physics Communications 4.8(2020):085010.
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