Utilize este identificador para referenciar este registo:
https://hdl.handle.net/1822/8937
Título: | Modelling lubricated revolute joints in multibody mechanical systems |
Autor(es): | Flores, Paulo Lankarani, H. M. Ambrósio, Jorge Claro, José Carlos Pimenta |
Palavras-chave: | Lubricated joints Dynamic journal–bearings Multibody mechanical systems |
Data: | 2004 |
Editora: | Professional Engineering Publishing |
Revista: | Proceedings of the Institution of Mechanical Engineers, Part-K Journal of Multi-body Dynamics |
Citação: | "Proceedings of the Institution of Mechanical Engineers. Part K : Journal of Multi-Body Dynamics”. ISSN 1464-4193. 218:4 (2004) 183-190 |
Resumo(s): | This work deals with the modelling of lubricated revolute joints in multibody mechanical systems. In most machines and mechanisms, the joints are designed to operate with some lubricant fluid. The high pressures generated in the lubricant fluid act to keep the journal and the bearing apart. Moreover, the thin film formed by lubricant reduces friction and wear, provides load capacity and adds damping to dissipate undesirable mechanical vibrations. In the dynamic analysis of journal–bearings, the hydrodynamic forces, which include both squeeze and wedge effects, produced by the lubricant fluid oppose the journal motion. These forces are obtained by integrating the pressure distribution evaluated with the aid of Reynolds’ equation written for the dynamic regime. The hydrodynamic forces are nonlinear functions of journal centre position and velocity relative to the bearing centre. In a simple way, the hydrodynamic forces built up by the lubricant fluid are evaluated from the state of variable of the system and included into the equations of motion of the mechanical system. Results for an elementary slider–crank mechanism, in which a lubricated revolute joint connects the connecting rod and slider, are used to discuss the assumptions and procedures adopted. |
Tipo: | Artigo |
URI: | https://hdl.handle.net/1822/8937 |
DOI: | 10.1243/1464419043541491 |
ISSN: | 1464-4193 |
Versão da editora: | http://journals.pepublishing.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 | |
---|---|---|---|---|
ARI-03-2004.pdf | Documento principal | 289,63 kB | Adobe PDF | Ver/Abrir |