Feasibility of influencing the dynamic fluid film coefficients of a multirecess journal bearing by means of active hybrid lubrication
Document title: Feasibility of influencing the dynamic fluid film coefficients of a multirecess journal bearing by means of active hybrid lubrication
Journal: Journal of the Brazilian Society of Mechanical Sciences and Engineering
Database: PERIÓDICA
System number: 000312205
ISSN: 1678-5878
Authors: 1
2
Institutions: 1Technical University of Denmark, Department of Mechanical Engineering, Lyngby. Dinamarca
2Universidade Estadual de Campinas, Campinas, Sao Paulo. Brasil
Year:
Season: Abr-Jun
Volumen: 25
Number: 2
Pages: 154-163
Country: Brasil
Language: Inglés
Document type: Artículo
Approach: Analítico
English abstract 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
Disciplines: Física y astronomía
Keyword: 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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