Utilize este identificador para referenciar este registo:
https://hdl.handle.net/1822/23438
Título: | Modeling and analysis of rigid multibody systems with translational clearance joints based on the nonsmooth dynamics approach |
Autor(es): | Flores, Paulo Leine, Remco Glocker, Christoph |
Palavras-chave: | Nonsmooth dynamics Clearance joints Contact-impact mechanics Linear complementarity problem Moreau time-stepping method Rigid multibody systems |
Data: | 2010 |
Editora: | Springer |
Revista: | Multibody System Dynamics |
Resumo(s): | The main purpose of this paper is to present and discuss a methodology for a dynamic modeling and analysis of rigid multibody systems with translational clearance joints. The methodology is based on the nonsmooth dynamics approach, in which the interaction of the elements that constitute a translational clearance joint is modeled with multiple frictional unilateral constraints. In the following, the most fundamental issues of the nonsmooth dynam-ics theory are revised. The dynamics of rigid multibody systems are stated as an equality of measures, which are formulated at the velocity-impulse level. The equations of motion are complemented with constitutive laws for the normal and tangential directions. In this work, the unilateral constraints are described by a set-valued force law of the type of Signorini’s condition, while the frictional contacts are characterized by a set-valued force law of the type of Coulomb’s law for dry friction. The resulting contact-impact problem is formulated and solved as a linear complementarity problem, which is embedded in the Moreau time-stepping method. Finally, the classical slider-crank mechanism is considered as a demonstrative ap-plication example and numerical results are presented. The results obtained show that the existence of clearance joints in the modeling of multibody systems influences their dynamics response. |
Tipo: | Artigo |
URI: | https://hdl.handle.net/1822/23438 |
DOI: | 10.1007/s11044-009-9178-y |
ISSN: | 1384-5640 |
Versão da editora: | www.springerlink.com |
Arbitragem científica: | yes |
Acesso: | Acesso aberto |
Aparece nas coleções: | DEM - Artigos em revistas de circulação internacional com arbitragem científica |
Ficheiros deste registo:
Ficheiro | Descrição | Tamanho | Formato | |
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6.7.17 2010.pdf | Documento principal | 7,27 MB | Adobe PDF | Ver/Abrir |