Feasibility of influencing the dynamic fluid film coefficients of a multirecess journal bearing by means of active hybrid lubrication
Título del documento: Feasibility of influencing the dynamic fluid film coefficients of a multirecess journal bearing by means of active hybrid lubrication
Revue: Journal of the Brazilian Society of Mechanical Sciences and Engineering
Base de datos: PERIÓDICA
Número de sistema: 000312205
ISSN: 1678-5878
Autores: 1
2
Instituciones: 1Technical University of Denmark, Department of Mechanical Engineering, Lyngby. Dinamarca
2Universidade Estadual de Campinas, Campinas, Sao Paulo. Brasil
Año:
Periodo: Abr-Jun
Volumen: 25
Número: 2
Paginación: 154-163
País: Brasil
Idioma: Inglés
Tipo de documento: Artículo
Enfoque: Analítico
Resumen en inglés The main objective of this research project is the investigation of multirecess hydrostatic journal bearings with active hybrid (hydrostatic and hydrodynamic) lubrication. This paper gives a theoretical contribution to the modeling of this kind of bearing, combining computational fluid dynamics and control techniques. The feasibility of influencing the dynamic fluid film coefficients (stiffness and damping) by means of a controllable fluid injection into opposed bearing recesses is investigated. By controlling the pressure and flow injection using servo control systems, it is possible to obtain significant modifications of active hybrid forces, which can be useful while reducing vibration and stabilizing rotating machines
Disciplinas: Física y astronomía
Palabras clave: Dinámica de fluidos,
Lubricación,
Lubricación activa,
Control de vibración,
Potencia de fluidos
Keyword: Physics and astronomy,
Fluid dynamics,
Lubrication,
Active lubrication,
Fluid power
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