挠性支承可倾瓦轴承动力特性研究  

A study on dynamic characteristics of flexure pivot tilting pad bearings

作　　者：杨期江 李伟光[2] 赵学智[2] 郭明军[2] YANG Qijiang;LI Weiguang;ZHAO Xuezhi;GUO Mingjun(School of Marine Engineering,GuangZhou Maritime University,Guangzhou 510725,China;School of Mechanical and Automotive Engineering,South China University of Technology,Guangzhou 510640,China)

机构地区：[1]广州航海学院轮机工程学院,广州510725 [2]华南理工大学机械与汽车工程学院,广州510640

出　　处：《振动与冲击》2018年第16期111-117,134,共8页Journal of Vibration and Shock

基　　金：国家高技术研究发展计划863计划(2015AA043005);国家自然科学基金(51375178);广东省教育厅项目(2017KQNCX145);创新强校项目(2017E14)

摘　　要：考虑油膜惯性与温黏效应,根据瓦块受力平衡方程,运动微分方程等,建立了挠性支承可倾瓦轴承动力学模型;提出一种挠性支承可倾瓦轴承的静平衡位置迭代计算方法,即基于PDE工具箱快速求解轴承非定常工况Reynolds方程及二维能量方程,采用Newton-Raphson迭代法可计算得到轴颈、瓦块静平衡位置。仿真结果与试验数据进行对比分析,验证了该动力学模型及仿真计算方法。The analysis includes the oil film inertia and viscosity temperature effects.Based on the pad force equilibrium equations and the differential equations of motion,the dynamic model of the flexible bearing tilting pad bearing is was established.In this paper,an iterative calculation method to determine the flexure pivot tilting pad that bears the static equilibrium position is was proposed.The PDE toolbox was used to solve the static and frequency disturbance pressure Reynolds equation The Newton-Raphson iteration method could be used to calculate the static equilibrium position of the journal and the pad.The simulation results were compared with the experimental data,and the dynamic model and simulation method are verified.

关 键 词：挠性支承 可倾瓦轴承 动力特性 

分 类 号：TH117.2[机械工程—机械设计及理论] TH113.1