Theoretical and experimental research on static stiffness,performance,and lift-off characteristics of multi-layer gas foil thrust bearings

作     者：Yang HU Pengjing DING Fangling WU Xiaojing WANG Bo LIANG Yonggang MENG Yang HU;Pengjing DING;Fangling WU;Xiaojing WANG;Bo LIANG;Yonggang MENG

作者机构：School of Mechatronic Engineering and AutomationShanghai UniversityShanghai 200072China Aviation Key Laboratory of Science and Technology on Aero Electromechanical System IntegrationNanjing Engineering Institute of Aircraft SystemsNanjing 211106China State Key Laboratory of TribologyTsinghua UniversityBeijing 100084China 

出 版 物：《Friction》 (摩擦（英文版）)

年 卷 期：2024年第12卷第11期

页      面：2458-2479页

核心收录：

学科分类：08[工学] 080203[工学-机械设计及理论] 0802[工学-机械工程] 

基　　金：supported by the National Natural Science Foundation of China(Nos.52275204,51905298,and 52075311) the Shanghai Key Laboratory of Intelligent Manufacturing and Robotics 

主　　题：multi-layer gas foil thrust bearing(GFTB) load carrying mechanism static performance 

摘      要：In this study,a new comprehensive fully coupled elastic–hydrodynamic model is developed for a multi-layer gas foil thrust bearing(GFTB).The interaction effects among the top foil,back board,middle foil,and bottom foil,as well as the Coulomb friction effect,are *** stiffness and static characteristics obtained by the experimental and theoretical approaches are in good agreement,which verifies the accuracy of the *** contribution of each foil layer to the overall stiffness and the load-carrying mechanism are *** effects of the load,preload,and rotational speed on the static performance are investigated ***,start–stop tests are performed to achieve the lift-off speed,start-up torque,and shut-down torque under various operating conditions.