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Static Characteristic Analysis of Multi-Layer Foil Thrust Bearing: Considering Parameter Effects

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Publicado en:Lubricants vol. 13, no. 7 (2025), p. 285-306
Autor principal: Jiang Yulong
Otros Autores: Zhu Qianjing, Huang Zhongwen, Gao Dongyan
Publicado:
MDPI AG
Materias:
Load
Pressure effects
Finite volume method
Simulation
Reynolds equation
Thrust bearings
Thick plates
Multilayers
Finite difference method
Newton-Raphson method
Boundary conditions
Parameter modification
Compressibility
Numerical analysis
Static characteristics
Foils
Deformation
Iterative solution
Efficiency
Acceso en línea:Citation/Abstract
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Resumen:A modified static characteristic model for the multi-layer foil thrust bearing (MLFTB) is established. In this model, the finite difference method and the thick plate element are implemented, the compressible Reynolds equation is linearized by the Newton–Raphson method, and the evolution law of the static characteristics with the geometric and operational parameters is derived by iterative solution. The results indicate that the bearing capacity could be generally decreased by around 3.15% when considering the slip boundary condition, which should not be neglected. Also, when under the rigorous wedge effect, the pressure peak near the mini clearance exhibits an obvious double peak shape. The bearing capacity can be slightly enhanced by an increase in the tilt angle of the thrust disk. In comparison to data in the literature, the current model shows satisfactory precision for the multi-layer foil thrust bearing. It aims to provide effective predictive means and theoretical reference for MLFTB.
ISSN:2075-4442
DOI:10.3390/lubricants13070285
Fuente:Engineering Database