A generalized solution of elasto-aerodynamic lubrication for aerodynamic compliant foil bearings

作     者：YU Lie QI Shemiao GENG Haipeng 

作者机构：Institute of Mechatronics and Information SystemsKey Laboratory of Education Ministry for Modern Design and Rotor-Bearing SystemsXi'an Jiaotong UniversityXi'an 710049China 

出 版 物：《Science China(Technological Sciences)》 (中国科学(技术科学英文版))

年 卷 期：2005年第48卷第4期

页      面：414-429页

核心收录：

学科分类：0810[工学-信息与通信工程] 08[工学] 0805[工学-材料科学与工程（可授工学、理学学位）] 0802[工学-机械工程] 0702[理学-物理学] 0812[工学-计算机科学与技术（可授工学、理学学位）] 

基　　金：This work was supported by the National Natural Science Foundation of China(Grant Nos.50275116 and 50475088) the National High-Tech Research and Development Program of China(Grant No.2002AA503020) 

主　　题：compliant foil bearing elasto-aerodynamic lubrication dynamic deformation dynamic stiffness and damping 

摘      要：Although aerodynamic compliant foil bearings are successfully applied in a number of turbo-machineries,theoretical researches on the modeling,performance prediction of compliant foil bearings and the dynamic analysis of the related rotor system seem still far behind the experimental investigation because of structural complexity of the foil bearings.A generalized solution of the elasto-aerodynamic lubrication is presented in this paper by introducing both static and dynamic deformations of foils and solving gas-lubricated Reynolds equations with deformation equations *** solution can be used for the calculation of dynamic stiffness and damping,as well as the prediction of static performances of foil *** theories and methods are also presented for the purpose of the prediction of dynamic behavior of a rotor system equipped with foil bearings.