齿轮-转子-轴承系统弯扭耦合非线性振动特性研究  

Nonlinear vibration of bending-torsion coupling gear-rotor-bearing system

作　　者：陆春荣 李以农[1] 窦作成 杨阳[2] 杜明刚[2] LU Chun-rong;LI Yi-nong;DOU Zuo-cheng;YANG Yang;DU Ming-gang(College of Automotive Engineering,Chongqing University,Chongqing 400030,China;China North Vehicle Research Institute,Beijing 100072,China)

机构地区：[1]重庆大学汽车工程学院,重庆400030 [2]北方车辆研究所,北京100072

出　　处：《振动工程学报》2018年第2期238-244,共7页Journal of Vibration Engineering

基　　金：中央高校基本科研业务费专项资金项目资助(106112015CDJZR118805)

摘　　要：针对存在不对中花键联轴器齿轮-转子-轴承系统,考虑齿轮啮合力和花键联轴器啮合力的影响,建立齿轮-转子-轴承系统动力学模型,推导了弯扭耦合振动的动力学微分方程。通过进行数值仿真求解,结合随参数变化的分岔图和对应的相图及庞加莱截面图,研究了啮合频率、偏心距、花键联轴器静态不对中等参数对系统振动响应特性的影响规律,为齿轮转子耦合系统参数选择、诊断和安全运行提供了理论依据。The dynamic characteristics of the gear-rotor-bearing system with misalignment spline coupling are studied.Considering nonlinear mesh force of gear pairs and spline coupling,the dynamic model of the gear-rotor-bearing system is proposed and the dynamic differential equation of coupled bending and torsional nonlinear vibration is deduced.The characteristic graphs,such as the diagrams of bifurcation via parameters and the corresponding phase diagram and Poincarédiagram,are obtained through the numerical simulation.The effects of the gear mesh frequency parameter,the static displacement parameter of misalignment spline coupling etc.are studied on the system vibration response.This study can provide a theoretic reference for optimum design,fault diagnosis and safe operation of geared rotor-bear coupled system.

关 键 词：非线性振动 齿轮-转子 弯扭耦合 啮合频率 花键联轴器 

分 类 号：O322[理学—一般力学与力学基础] TH113.1[理学—力学]