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国外文献 > 1.轴承 > 4. 设计与分析 > 数值方法


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标 题: A Comparative Performance Analysis of Gas Lubricated Cylindrical and Elliptical Journal Bearings
气体润滑圆柱滚子轴承与椭圆滚子轴承的性能比较分析
作 者: Marco Tulio C. Faria
关键词: Gas Bearings  [气体轴承]
Cylindrical Journal Bearing  [ 圆柱滚子轴承]
Elliptical Journal Bearing  [ 椭圆型滚动轴承]
Finite Element Method  [ 有限元法]
出版年: 2014
期刊名: International review of mechanical engineering
机械工程国际评审
年卷期: 2014, vol.8, no.5
摘 要: The finite element method is employed to perform a comparative analysis of gas lubricated cylindrical and elliptical journal bearings in this work. A finite element procedure, based on the Galerkin weighted residual method, is specially devised to solve the zeroth- and first-order lubrication equations for plain cylindrical and non-cylindrical hydrodynamic journal bearings running on thin gas fluid films. Load-carrying capacity and dynamic force coefficients of gas cylindrical and elliptical journal bearings are computed for some geometric and operating parameters, such as journal eccentricity ratio and rotational speed. Several comparative curves of steady-state and dynamic bearing characteristics depict the differences in the behavior of some gas lubricated fixed-geometry journal bearings.

本研究采用有限元方法对气体润滑的圆柱形和椭圆形滚子轴承进行对比分析。特别设计了一种基于伽辽金加权残差法的有限元程序,用于求解在薄气体流体膜下运行的普通圆柱形及非圆柱形流体动力学滚子轴承中零阶和一阶润滑方程。针对某些几何参数和运行参数(如滚子偏心率比和转速),计算了气体润滑圆柱形和椭圆形滚子轴承的承载能力以及动态力系数。通过绘制稳态与动态轴承特性的若干对比曲线,展示了部分气体润滑固定几何形状滚子轴承行为上的差异。
中文内容为网络AI翻译,专业术语未必准确,仅供参考。

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