VIBRATIONS DUE TO IMPACT IN A NON IDEAL MECHANICAL SYSTEM WITH A NON-LINEAR HERTZIAN CONTACT MODEL
Autor(a) principal: | |
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Data de Publicação: | 2014 |
Outros Autores: | , |
Tipo de documento: | Artigo de conferência |
Idioma: | eng |
Título da fonte: | Repositório Institucional da UNESP |
Texto Completo: | http://dx.doi.org/10.1115/DETC2014-34145 http://hdl.handle.net/11449/249037 |
Resumo: | This 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. |
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Repositório Institucional da UNESP |
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VIBRATIONS DUE TO IMPACT IN A NON IDEAL MECHANICAL SYSTEM WITH A NON-LINEAR HERTZIAN CONTACT MODELThis 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.Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)Department of Mechanical Engineering University of São Paulo, Av. Trabalhador São-Carlense, 400, SPDEMAC State University of São Paulo, Av. 24-A, 1515, SPFederal University of ABC, Av dos Estados, 5001, SPUniversidade de São Paulo (USP)Federal University of ABCNavarro, Helio A.Balthazar, Jose M.Brasil, Reyolando M.L.R.F.2023-07-29T14:00:40Z2023-07-29T14:00:40Z2014-01-01info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/conferenceObjecthttp://dx.doi.org/10.1115/DETC2014-34145Proceedings of the ASME Design Engineering Technical Conference, v. 8.http://hdl.handle.net/11449/24903710.1115/DETC2014-341452-s2.0-85147796980Scopusreponame:Repositório Institucional da UNESPinstname:Universidade Estadual Paulista (UNESP)instacron:UNESPengProceedings of the ASME Design Engineering Technical Conferenceinfo:eu-repo/semantics/openAccess2023-07-29T14:00:40Zoai:repositorio.unesp.br:11449/249037Repositório InstitucionalPUBhttp://repositorio.unesp.br/oai/requestopendoar:29462024-08-05T19:41:41.510896Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP)false |
dc.title.none.fl_str_mv |
VIBRATIONS DUE TO IMPACT IN A NON IDEAL MECHANICAL SYSTEM WITH A NON-LINEAR HERTZIAN CONTACT MODEL |
title |
VIBRATIONS DUE TO IMPACT IN A NON IDEAL MECHANICAL SYSTEM WITH A NON-LINEAR HERTZIAN CONTACT MODEL |
spellingShingle |
VIBRATIONS DUE TO IMPACT IN A NON IDEAL MECHANICAL SYSTEM WITH A NON-LINEAR HERTZIAN CONTACT MODEL Navarro, Helio A. |
title_short |
VIBRATIONS DUE TO IMPACT IN A NON IDEAL MECHANICAL SYSTEM WITH A NON-LINEAR HERTZIAN CONTACT MODEL |
title_full |
VIBRATIONS DUE TO IMPACT IN A NON IDEAL MECHANICAL SYSTEM WITH A NON-LINEAR HERTZIAN CONTACT MODEL |
title_fullStr |
VIBRATIONS DUE TO IMPACT IN A NON IDEAL MECHANICAL SYSTEM WITH A NON-LINEAR HERTZIAN CONTACT MODEL |
title_full_unstemmed |
VIBRATIONS DUE TO IMPACT IN A NON IDEAL MECHANICAL SYSTEM WITH A NON-LINEAR HERTZIAN CONTACT MODEL |
title_sort |
VIBRATIONS DUE TO IMPACT IN A NON IDEAL MECHANICAL SYSTEM WITH A NON-LINEAR HERTZIAN CONTACT MODEL |
author |
Navarro, Helio A. |
author_facet |
Navarro, Helio A. Balthazar, Jose M. Brasil, Reyolando M.L.R.F. |
author_role |
author |
author2 |
Balthazar, Jose M. Brasil, Reyolando M.L.R.F. |
author2_role |
author author |
dc.contributor.none.fl_str_mv |
Universidade de São Paulo (USP) Federal University of ABC |
dc.contributor.author.fl_str_mv |
Navarro, Helio A. Balthazar, Jose M. Brasil, Reyolando M.L.R.F. |
description |
This 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. |
publishDate |
2014 |
dc.date.none.fl_str_mv |
2014-01-01 2023-07-29T14:00:40Z 2023-07-29T14:00:40Z |
dc.type.status.fl_str_mv |
info:eu-repo/semantics/publishedVersion |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/conferenceObject |
format |
conferenceObject |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
http://dx.doi.org/10.1115/DETC2014-34145 Proceedings of the ASME Design Engineering Technical Conference, v. 8. http://hdl.handle.net/11449/249037 10.1115/DETC2014-34145 2-s2.0-85147796980 |
url |
http://dx.doi.org/10.1115/DETC2014-34145 http://hdl.handle.net/11449/249037 |
identifier_str_mv |
Proceedings of the ASME Design Engineering Technical Conference, v. 8. 10.1115/DETC2014-34145 2-s2.0-85147796980 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
Proceedings of the ASME Design Engineering Technical Conference |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.source.none.fl_str_mv |
Scopus reponame:Repositório Institucional da UNESP instname:Universidade Estadual Paulista (UNESP) instacron:UNESP |
instname_str |
Universidade Estadual Paulista (UNESP) |
instacron_str |
UNESP |
institution |
UNESP |
reponame_str |
Repositório Institucional da UNESP |
collection |
Repositório Institucional da UNESP |
repository.name.fl_str_mv |
Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP) |
repository.mail.fl_str_mv |
|
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1808129107029917696 |