Transformation between polar and rectangular coordinates of stiffness and dampness parameters in hydrodynamic journal bearings  

作　　者：Zhuxin TIAN Yu HUANG 

机构地区：[1]School of Mechanical Engineering,Hubei University of Arts and Science,Xiangyang 441053,China [2]State Key Lab of Digital Manufacturing Equipment and Technology,School of Mechanical Science and Engineering,Huazhong University of Science and Technology,Wuhan 430074,China

出　　处：《Friction》2021年第1期201-206,共6页摩擦（英文版）

基　　金：supported by science and technology research project of Hubei provincial department of education(No.Q20192603);doctoral research fund of Hubei University of Arts and Science(No.2059023)。

摘　　要：The stiffness and dampness parameters of journal bearings are required in rectangular coordinates for analyzing the stability boundary and threshold speed of oil film bearings.On solving the Reynolds equation,the oil film force is always obtained in polar coordinates;thus,the stiffness and dampness parameters can be easily obtained in polar coordinates.Therefore,the transformation between the polar and rectangular coordinates of journal bearing stiffness and dampness parameters is discussed in this study.

关 键 词：coordinate transformation stiffness parameters dampness parameters hydrodynamic journal bearings 

分 类 号：O313.3[理学—一般力学与力学基础] TH133.3[理学—力学]