Importance of event detection and nonlinear characterization of dynamical systems with discontinuity boundary

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MetadadosDescriçãoIdioma
Autor(es): dc.contributorNew Mexico State University-
Autor(es): dc.contributorUniversidade Estadual Paulista (Unesp)-
Autor(es): dc.contributorSandia National Laboratories-
Autor(es): dc.creatorSaunders, B. E.-
Autor(es): dc.creatorVasconcellos, R. [UNESP]-
Autor(es): dc.creatorKuether, R. J.-
Autor(es): dc.creatorAbdelkefi, A.-
Data de aceite: dc.date.accessioned2022-02-22T00:45:20Z-
Data de disponibilização: dc.date.available2022-02-22T00:45:20Z-
Data de envio: dc.date.issued2021-06-25-
Data de envio: dc.date.issued2021-06-25-
Data de envio: dc.date.issued2020-12-31-
Fonte completa do material: dc.identifierhttp://dx.doi.org/10.2514/6.2021-1499-
Fonte completa do material: dc.identifierhttp://hdl.handle.net/11449/205794-
Fonte: dc.identifier.urihttp://educapes.capes.gov.br/handle/11449/205794-
Descrição: dc.descriptionIn this study, the response of a dynamical system with an increasingly stiff freeplay nonlinearity is investigated. Numerical simulations are carried out on a forced Duffing oscillator with low, intermediate, and hard levels of contact. This study is intended to explore the effects of contact stiffness on the system response as the contact approaches hard impact. The importance of accurately capturing points of contact in the system will also be examined. Preliminary results indicate significant shifts in the frequency-response curves of the system along with reduction in amplitudes. These effects are amplified if the contact is asymmetrically spaced in the system. Further, for soft contact, event detection is not always essential to result accuracy. However, for hard contact, event detection is important to ensure accurate results. Differences with/without event detection range from “poorly converged” appearance to slower transient decay to incorrectly predicting potentially dangerous subharmonic resonances.-
Descrição: dc.descriptionSandia National Laboratories-
Descrição: dc.descriptionCoordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)-
Descrição: dc.descriptionU.S. Department of Energy-
Descrição: dc.descriptionDepartment of Mechanical and Aerospace Engineering New Mexico State University-
Descrição: dc.descriptionSão Paulo State University (UNESP)-
Descrição: dc.descriptionSandia National Laboratories-
Descrição: dc.descriptionSão Paulo State University (UNESP)-
Descrição: dc.descriptionCAPES: 88881.302889/2018-01-
Descrição: dc.descriptionU.S. Department of Energy: DE-NA0003525-
Formato: dc.format1-12-
Idioma: dc.languageen-
Relação: dc.relationAIAA Scitech 2021 Forum-
???dc.source???: dc.sourceScopus-
Título: dc.titleImportance of event detection and nonlinear characterization of dynamical systems with discontinuity boundary-
Aparece nas coleções:Repositório Institucional - Unesp

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