A flow-difference feedback iteration method and its application to high-speed aerostatic journal bearings

被引：26

作者：

Li, Yazhe ^{[1
]}

Zhou, Kai ^{[1
,2
]}

Zhang, Zhen ^{[1
,2
,3
]}

机构：

[1] Tsinghua Univ, Beijing 100084, Peoples R China

[2] Tsinghua Univ, Beijing Key Lab Precis Ultraprecis Mfg Equipment, Beijing 100084, Peoples R China

[3] Zhejiang Univ, State Key Lab Fluid Power Transmiss & Control, Hangzhou 310027, Zhejiang, Peoples R China

来源：

TRIBOLOGY INTERNATIONAL | 2015年 / 84卷

关键词：

Reynolds equation; Aerostatic bearing; Feedback; FDM; PERFORMANCE ANALYSIS; GAS;

D O I：

10.1016/j.triboint.2014.12.002

中图分类号：

TH [机械、仪表工业];

学科分类号：

0802 ;

摘要：

This paper proposes a novel iteration method for finite difference method (FDM) based solution of Reynolds equation, and applies it to the analysis of high-speed aerostatic journal bearings. The idea behind the proposed iteration method is: flow-difference is utilized for feedback in the iteration loop of the pressure ratios of orifices. Furthermore, the situation of flow-difference is described by the relative error of flow equilibria during the iteration. Specifically, two important advantages of the proposed method lie in: insensitive to initial conditions; its times of iteration are significantly improved. The bearing capability and stiffness are investigated by varying design parameters. (C) 2014 Elsevier Ltd. All rights reserved.

引用

页码：132 / 141

页数：10

共 23 条

[1] Reducing the Radial Error Motion of an Aerostatic Journal Bearing to a Nanometre Level: Theoretical Modelling [J].