参数变化对挤压油膜阻尼器滑动轴承-转子系统动力响应的影响  

On Dynamic Response of SFD-Sliding Bearing Rotor System with Parameters

作　　者：王继燕[1] 李丛丛 WANG Ji-yan;LI Cong-cong(School of Science,Shandong Jiaotong University,Jinan Shandong 250357,China;Basic Medical Department,Shandong Medical College,Jinan Shandong 276000,China)

机构地区：[1]山东交通学院理学院,山东济南250357 [2]山东医学高等专科学校医学基础部,山东济南276000

出　　处：《菏泽学院学报》2020年第5期31-35,共5页Journal of Heze University

基　　金：山东省自然科学基金项目(ZR2017LA005);山东省高等学校科技计划项目(J16LJ11)。

摘　　要：本文建立了挤压油膜阻尼器-滑动轴承转子模型,采用Runge-Kutta法求解系统的动力学响应问题,进而研究了转速和挤压油膜阻尼器弹性刚度对系统动力响应的影响.研究结果表明,随着转速增大,系统经历了由周期运动到准周期运动、混沌的过程;挤压油膜阻尼器内支承刚度越大,系统响应越弱,刚度较小时,系统会进入准周期运动形态.研究结果可为挤压油膜阻尼器转子系统的结构参数设计提供参考.This paper establishes a model of SFD-bearing rotor to solve dynamic response question of the rotor system by adopting Runge-Kutta method,and analyzes the influences of speed and stiffness of elastic support of SFD on dynamic response of the system.The results show that with the increase of rotating speed,the system has experienced a process from periodic motion to quasi periodic motion and chaos;the greater the support stiffness,the weaker the system response,and when the stiffness is relatively small,the system will go into the state of periodic motion.These results can provide the reference for designing structure parameters of SFD rotor systems.

关 键 词：挤压油膜阻尼器 转子 支承刚度 振动 

分 类 号：O322[理学—一般力学与力学基础]