Nonlinear dynamic analysis of low viscosity fluid-lubricated tilting-pad journal bearing for different design parameters

作     者：Yingze JIN Fei CHEN Jimin XU Xiaoyang YUAN Yingze JIN;Fei CHEN;Jimin XU;Xiaoyang YUAN

作者机构：Key Laboratory of Education Ministry for Modern Design and Rotor-Bearing SystemXi'an Jiaotong UniversityXi'an 710049China Institute of TribologySchool of Mechanical EngineeringHefei University of TechnologyHefei 230009China 

出 版 物：《Friction》 (摩擦（英文版）)

年 卷 期：2020年第8卷第5期

页      面：930-944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] 080201[工学-机械制造及其自动化] 

基　　金：This work is supported by National Basic Research Program of China(Grant No.2015CB057303) National Natural Science Foundation of China(Grant No.51775412) 

主　　题：journal center orbit dynamic minimum film thickness tilting-pad journal bearing bearing design parameter 

摘      要：To reveal nonlinear dynamic rules of low viscosity fluid-lubricated tilting-pad journal bearings(TPJBs),the effects of design parameters on journal center orbits and dynamic minimum film thicknesses of water-lubricated TPJBs with and without static loads are *** hydrodynamic bearing force used in the nonlinear dynamic analysis is an approximate analytical solution including the turbulence *** results reveal the methods for vibration suppression and load capacity improvement and give an optimal pivot offset and clearance ratio that can maximize the minimum film *** results also show that four-pad TPJBs with loads between pads are preferred due to good dynamic performance and load *** study would provide some guidance for nonlinear design of low viscosity fluid-lubricated TPJBs under dynamic loads.