滚动轴承支撑下齿轮耦合转子横向振动建模及非线性动力学特性

发布时间：2018-04-28 10:35

本文选题：齿轮耦合转子 + 滚轴轴承　；参考：《中南大学学报(自然科学版)》2017年08期

【摘要】：在综合考虑滚动轴承游隙、齿轮副齿侧间隙以及时变啮合刚度等非线性因素的基础上,建立滚动轴承支撑下的齿轮耦合转子系统的横向振动非线性动力学模型,并通过数值仿真的方法对系统运动状态的分岔规律以及动力学频响特性进行研究。研究结果发现:在非线性轴承力的激励下,转速、轴承游隙以及轴承阻尼的变化,都会导致系统通过不同的分岔途径进入到混沌运动状态;质量偏心以及齿侧间隙的增大都会使系统响应由简单的轴承力激振频率及其倍数频逐渐复杂化为离心力激振频率、轴承力激振频率、以及二者的各种线性组合频率共存的情况,齿轮啮频成分也出现在系统响应中,但始终处于弱势地位。
[Abstract]:Based on the consideration of the nonlinear factors such as the clearance of rolling bearing, the side clearance of gear pair and the time-varying meshing stiffness, the nonlinear dynamic model of transverse vibration of gear coupling rotor system supported by rolling bearing is established. The bifurcation law and dynamic frequency response characteristics of the system are studied by numerical simulation. The results show that under the excitation of nonlinear bearing force, the changes of rotational speed, bearing clearance and bearing damping will lead the system to chaotic motion through different bifurcation paths. The increase of mass eccentricity and tooth clearance will complicate the system response from simple bearing force excitation frequency and its multiple frequency to centrifugal force excitation frequency, bearing force excitation frequency and various linear combination frequencies. Gear mesh frequency components also appear in the system response, but always in a weak position.
【作者单位】：南京航空航天大学机电工程学院;安徽科技学院机械工程学院;
【基金】：国家自然科学基金资助项目(51475226,51305196) 安徽省教育厅自然科学重点资助项目(KJ2015A179) 安徽省科技攻关项目(1501031095,1604a0902134) 安徽科技学院自然科学项目(ZRC2016488)~~
【分类号】：TH113;TH132.41

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