Prediction of Stiffness Coefficients for Foil Air Bearings to Perform Rotordynamic Analysis of Turbomachinery

Ravikovich, Yu. A.; Ermilov, Yu. I.; Pugachev, Alexander O.; Matushkin, A. A.; Холобцев, Д. П.

doi:10.1007/978-3-319-06590-8_104

Cited by 1 publication

(1 citation statement)

References 6 publications

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“…They evaluated the dynamic performance at an elevated temperature and also found that the softening effect of the bump foil results in a decrease of both stiffness and damping coefficients. Ravikovich et al [22] established a CFD model for the fluid domain and incorporated the analytical expressions for the deformation of compliant elements into the CFD model through a moving mesh technique. Thus, the structural model was extremely simplified.…”

Section: Introductionmentioning

confidence: 99%

The Fluid-Structure-Thermal Performance Analysis of Gas Foil Thrust Bearing by Using Computational Fluid Dynamics

Liu

2022

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This paper presents a detailed three-dimensional (3D) thermo-elastic-hydrodynamic (TEHD) multi-physics model of the bump-type gas foil thrust bearing based on computational fluid dynamics (CFD). In this model, the moving mesh technology is applied in the fluid flow domain, and the new boundary condition of fully developed flow is applied at the inlet and outlet boundaries, which is consistent with the continuous property of fluid flow and has better convergence performance in CFD. The groove between pads is set as the symmetry boundary. The contact pairs with Coulomb friction and contact/separation behaviors are considered in the structure deformation and heat transfer. The simulation results indicated that the boundary pressure has a significant influence on the foil deformation. It also revealed the heat flux transfer path and temperature distribution in the gas foil thrust-bearing (GFTB) system.

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Section: Introductionmentioning

confidence: 99%

The Fluid-Structure-Thermal Performance Analysis of Gas Foil Thrust Bearing by Using Computational Fluid Dynamics

Liu

2022

Lubricants

View full text Add to dashboard Cite

show abstract

Prediction of Stiffness Coefficients for Foil Air Bearings to Perform Rotordynamic Analysis of Turbomachinery

Cited by 1 publication

References 6 publications

The Fluid-Structure-Thermal Performance Analysis of Gas Foil Thrust Bearing by Using Computational Fluid Dynamics

The Fluid-Structure-Thermal Performance Analysis of Gas Foil Thrust Bearing by Using Computational Fluid Dynamics

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