Identification of stiffness and damping coefficients of hydrostatic bearing with angled injection

Autor:	Olivier Bonneau, Pascal Jolly, Mohamed Amine Hassini, Mihai Arghir
Rok vydání:	2013
Předmět:	Materials science Bearing (mechanical) Mechanical Engineering Mechanical engineering Stiffness Fluid bearing Surfaces and Interfaces Mechanics Surfaces Coatings and Films law.invention law Lubrication medicine Hydrostatic equilibrium medicine.symptom
Zdroj:	Proceedings of the Institution of Mechanical Engineers, Part J: Journal of Engineering Tribology. 227:905-911
ISSN:	2041-305X 1350-6501
DOI:	10.1177/1350650113482613
Popis:	This study deals with the experimental results obtained for a hydrostatic/hydrodynamic bearing used in aerospace turbopumps. This supporting element, if fitted with angled injection directed against shaft rotation, can provide a stabilizing effect to the rotor by reducing the circumferential flow. In order to characterize this effect and to improve its numerical simulation, an experimental housing has been designed to test the three directions of injection (radial, 25° and 50°). Measurements were obtained for the centered bearing operating at 2 kr/min, 4 kr/min and 6 kr/min with supply pressures of 2.5 MPa, 3.5 MPa and 4.5 MPa. The test rig uses hot water (
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::1bc2f669c9c53e400e2722a23ed893a5 https://doi.org/10.1177/1350650113482613 Zobrazit plný text záznamu