多级行星齿轮传动动态特性及均载研究

发布时间：2018-04-13 00:38

本文选题：行星齿轮 + 动态响应　；参考：《湘潭大学》2012年硕士论文

【摘要】：多级行星齿轮传动在众多工业领域内作为传动装置有着很普遍的应用，，其动态性能的优劣严重影响到传动装置工作的可靠性及使用寿命。由于构件的制造、安装误差等原因，齿轮啮合副与滚动轴承中都会出现间隙，而间隙的存在严重影响着齿轮系统在工作过程中所表现出的动态性能，对传动装置的稳定性及工作寿命提出了严峻的挑战，对此在结构设计中有必要采用合理的均载装置。因此，本文重点对XE93型风力发电变桨减速器的动态特性及均载问题进行了研究，主要工作如下：建立了多自由度变桨减速器系统的动力学模型，按石川法计算轮齿啮合刚度，阐述了模态分析法并应用该方法求解系统振动方程，根据算例参数得到了系统的模态及构件的振动位移响应。分析了影响系统均载性能的主要误差，根据静力学均载计算模型，结合设计条件详细地推导了考虑构件浮动条件下均载系数的计算公式。通过MATLAB编程计算，分别得到了构件浮动条件下系统各级传动的均载系数随时间变化图，分析了不同的构件浮动类型对均载系数的影响，计算了各构件在其偏心误差单独作用以及多组不同输入转速的工况条件下的第一级传动均载系数。对原动力学模型进行了修正，修正后的动力学模型考虑了误差激励的影响。对太阳轮、行星轮和行星架构件分别建立了振动方程，根据各构件的振动方程推导出系统的刚度矩阵和阻尼矩阵。介绍了Fourier法求解系统方程，通过MATLAB编程计算，分别得出各级传动的动载系数与均载系数，分析了啮合刚度、构件偏心误差等主要参数变化对系统均载性能的影响。借助ADAMS软件对系统进行了动力学仿真，分析了输出转速和第三级传动中各行星轮的啮合力时域响应及各级行星轮的振动位移响应。
[Abstract]:Multistage planetary gear transmission is widely used as a transmission device in many industrial fields. Its dynamic performance seriously affects the reliability and service life of the transmission device.Because of the manufacturing and installation error of the components, the clearance will appear in the gear meshing pair and the rolling bearing, and the existence of the clearance will seriously affect the dynamic performance of the gear system in the working process.This paper presents a severe challenge to the stability and working life of the transmission device, and it is necessary to adopt a reasonable load sharing device in the structural design.Therefore, this paper focuses on the dynamic characteristics and load equalization of XE93 type wind turbine variable propeller reducer. The main work is as follows:The dynamic model of multi-degree-of-freedom variable propeller reducer system is established. The meshing stiffness of gear teeth is calculated by Shi Chuan method. The modal analysis method is described and applied to solve the vibration equation of the system.The modal of the system and the vibration displacement response of the member are obtained according to the example parameters.The main errors affecting the load sharing performance of the system are analyzed. According to the statics load average calculation model and the design conditions, the calculation formula of the average load coefficient considering the floating component is derived in detail.Through MATLAB programming calculation, the variation diagram of load average coefficient with time is obtained under the condition of component floating, and the influence of different floating type of component on load average coefficient is analyzed.The load average coefficients of the first stage of each component are calculated under the condition of its eccentricity error acting alone and the working conditions of many different input speeds.The original dynamic model is modified and the effect of error excitation is taken into account in the modified dynamic model.The vibration equations of solar wheel, planetary wheel and planetary structure are established, and the stiffness matrix and damping matrix of the system are derived according to the vibration equations of each component.The Fourier method is introduced to solve the system equation. By MATLAB programming, the dynamic load coefficient and the average load coefficient are obtained, respectively. The influence of the main parameters such as meshing stiffness and eccentricity error on the load sharing performance of the system is analyzed.The dynamic simulation of the system is carried out with the help of ADAMS software. The time domain response of the meshing force of each planetary gear and the vibration displacement response of the planetary gear are analyzed in the output speed and the third stage transmission.
【学位授予单位】：湘潭大学
【学位级别】：硕士
【学位授予年份】：2012
【分类号】：TH132.425

【参考文献】