...
  • 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Microsystem technologies >Theoretical analysis of the slip flow effect on gas-lubricated micro spherical spiral groove bearings for machinery gyroscope
【24h】

Theoretical analysis of the slip flow effect on gas-lubricated micro spherical spiral groove bearings for machinery gyroscope

机译：机械陀螺气润滑微球面螺旋槽轴承滑流效应的理论分析

获取原文
获取原文并翻译 | 示例
   

获取外文期刊封面封底 >>

       
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

The performance of a gas-lubricated micro spherical spiral groove bearing (MSSGB) with slip flow effect is investigated. A modified Reynolds equation incorporated with Barber's first-order slip flow model is proposed to investigate the flow characteristics of gas in MSSGBs. Parameter transformation and oblique coordinate transformation are applied to eliminate the curve effect on the calculation domain. An improved finite difference method (FDM) based on Green's formula is used to solve the Reynolds equation. The perturbation method is adopted to determine the dynamic coefficients. The effects of slip flow and bearing parameters, including the groove depths, rotor speeds, and eccentricity ratios, on the bearing characteristics are investigated and discussed. Prediction results show that the slip flow effect on MSSGB performance is significant. Moreover, the groove depth at micro clearance has a crucial influence on bearing performance.
机译：研究了具有滑流效应的气体润滑微球形螺旋槽轴承（MSSGB）的性能。提出了结合Barber一阶滑流模型的改进的雷诺方程，以研究MSSGBs中气体的流动特性。应用参数变换和斜坐标变换以消除曲线对计算域的影响。一种改进的基于格林公式的有限差分法（FDM）用于求解雷诺方程。采用摄动法确定动态系数。研究并讨论了滑流和轴承参数（包括凹槽深度，转子速度和偏心比）对轴承特性的影响。预测结果表明，滑流对MSSGB性能的影响是显着的。此外，微小间隙处的凹槽深度对轴承性能有着至关重要的影响。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号