VIBRATIONS DUE TO IMPACT IN A NON IDEAL MECHANICAL SYSTEM WITH A NON-LINEAR HERTZIAN CONTACT MODEL

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dc.contributor.authorNavarro, Helio A.
dc.contributor.authorBalthazar, Jose M.
dc.contributor.authorBrasil, Reyolando M.L.R.F.
dc.contributor.institutionUniversidade de São Paulo (USP)
dc.contributor.institutionFederal University of ABC
dc.date.accessioned2023-07-29T14:00:40Z
dc.date.available2023-07-29T14:00:40Z
dc.date.issued2014-01-01
dc.description.abstractThis work analyses the post impact behavior of a mechanical system consisting of an oscillator and an unbalanced non-ideal electrical motor. The impact between the mechanical system and a rigid wall is based on the assumption that the impacting bodies undergo local deformations. The method used in the present work is similar to the Discrete Element Method for particle systems modeled with a soft-sphere mechanism. The contact forces are modeled using a nonlinear damped Hertzian Spring-Dashpot system. The mathematical model of the mechanical system is represented by a set of nonlinear ordinary differential equations. The transient and steady-state responses are discussed. As the motor is considered a non ideal energy source, the Sommerfeld effect is also analyzed. The impact model is first applied for a single freely falling particle and then in the proposed mechanical system. Non-dimensional expressions for the contact force and numerical simulations of the mechanical system behavior are also presented.en
dc.description.affiliationDepartment of Mechanical Engineering University of São Paulo, Av. Trabalhador São-Carlense, 400, SP
dc.description.affiliationDEMAC State University of São Paulo, Av. 24-A, 1515, SP
dc.description.affiliationFederal University of ABC, Av dos Estados, 5001, SP
dc.description.sponsorshipFundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)
dc.identifierhttp://dx.doi.org/10.1115/DETC2014-34145
dc.identifier.citationProceedings of the ASME Design Engineering Technical Conference, v. 8.
dc.identifier.doi10.1115/DETC2014-34145
dc.identifier.scopus2-s2.0-85147796980
dc.identifier.urihttp://hdl.handle.net/11449/249037
dc.language.isoeng
dc.relation.ispartofProceedings of the ASME Design Engineering Technical Conference
dc.sourceScopus
dc.titleVIBRATIONS DUE TO IMPACT IN A NON IDEAL MECHANICAL SYSTEM WITH A NON-LINEAR HERTZIAN CONTACT MODELen
dc.typeTrabalho apresentado em evento

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Artigos - Estatistica, Matemática Aplicada e Computação - IGCE