Analysis of the dynamic characteristics of rod and beam structures with nonlinear stiffness boundaries

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dc.contributor.authorXu, Wenfeng
dc.contributor.authorTang, Bin
dc.contributor.authorBrennan, Michael J. [UNESP]
dc.contributor.authorManconi, Elisabetta
dc.contributor.authorGonçalves, Paulo J. Paupitz [UNESP]
dc.contributor.institutionDalian University of Technology
dc.contributor.institutionUniversidade Estadual Paulista (UNESP)
dc.contributor.institutionUniversity of Parma
dc.date.accessioned2023-07-29T15:41:32Z
dc.date.available2023-07-29T15:41:32Z
dc.date.issued2022-07-01
dc.description.abstractNonlinear boundaries exist in many engineering structures and significantly influence the vibration of systems. The dynamic characteristics of a rod or beam structure with nonlinear stiffness boundaries were studied. The traveling wave method and the variable separation method were used to analyze the dynamic characteristics of the rod, and the relationship between the two approaches was investigated. For the beam, the incident propagating and nearfield waves were considered, respectively. The relationships between the dimensionless frequency, displacement, reflection coefficient, and phase were discussed by using the harmonic balance method. Finally, the backbone and frequency response curves of the rod and beam structures were obtained by using the phase closure principle and the variable separation method. In order to verify the accuracy and effectiveness of the theoretical calculations, a finite element numerical simulation was carried out for the rod and beam models. The results show that the theoretical solutions compare well with the numerical simulation results.en
dc.description.affiliationSchool of Energy and Power Engineering Dalian University of Technology
dc.description.affiliationSchool of Engineering São Paulo State University (UNESP)
dc.description.affiliationDepartment of Engineering and Architecture University of Parma
dc.description.affiliationUnespSchool of Engineering São Paulo State University (UNESP)
dc.identifierhttp://dx.doi.org/10.13465/j.cnki.jvs.2022.14.022
dc.identifier.citationZhendong yu Chongji/Journal of Vibration and Shock, v. 41, n. 14, 2022.
dc.identifier.doi10.13465/j.cnki.jvs.2022.14.022
dc.identifier.issn1000-3835
dc.identifier.scopus2-s2.0-85143440591
dc.identifier.urihttp://hdl.handle.net/11449/249447
dc.language.isozho
dc.relation.ispartofZhendong yu Chongji/Journal of Vibration and Shock
dc.sourceScopus
dc.subjectbackbone curve
dc.subjectharmonic balance method
dc.subjectnonlinear boundary
dc.subjectphase closure principle
dc.titleAnalysis of the dynamic characteristics of rod and beam structures with nonlinear stiffness boundariesen
dc.typeArtigo
unesp.departmentHistória - FCLASpt

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