Theoretical analysis on the static and dynamic performances of a squeeze film air journal bearing with three separate pads structure

Liu, Yuanyuan; Sun, Xi; Sepahvand, K.; Marburg, Steffen

doi:10.1016/j.ijmecsci.2021.106442

Cited by 11 publications

(1 citation statement)

References 61 publications

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“…The explicit difference format has strict limitations on the choice of time step and is less frequently used in practice. Liu Y et al [18] used the finite difference method and Newton iteration method to solve the air film Reynolds equation. Li H et al [19] and Shou T et al [20] used the Crank-Nicolson implicit difference format to solve the equation numerically.…”

Section: Introductionmentioning

confidence: 99%

Analysis of the Load-Bearing Characteristics of Gas-Extruded Membrane Bearings Based on the Alternating Direction Implicit Method

Dong-ming

Wang

et al. 2023

Lubricants

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In this study, a novel gas-extruded membrane bearing was developed, and an optimization algorithm was applied to solve a Reynolds equation that describes the load-bearing characteristics of this bearing. This was effective in improving the solution rate of the Reynolds equation, significantly reducing the difficulty of obtaining a solution, avoiding high programming difficulty, and achieving a high solution accuracy. Through a comparative analysis, the error in the accuracy of the alternating implicit difference method was addressed, and the traditional finite element method for solving the same model was verified, with an average error of 2% reached to verify its applicability. The algorithm was also used to analyze the load-bearing capacity of the gas-extruded membrane bearing. This revealed not only a positive correlation of the average load-bearing capacity of the gas-extruded membrane bearing with the frequency and amplitude of vibration but also a negative correlation with radial clearance, with the cut-off frequency reaching 19 Khz. The load-bearing capacity of the gas-extruded membrane bearing proposed in this paper reached 1.28 N, which indicated an error of 3.28% with the theoretical approach. To sum up, this research provides an important reference for the design and manufacture of novel gas-extruded membrane bearings.

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Section: Introductionmentioning

confidence: 99%