含间隙多体系统销轴磨损动力学仿真研究  

Dynamics Simulation of Wear in Revolute Clearance Joints of Multibody Systems

作　　者：李华杰[1,2] 刘宏昭[1] 

机构地区：[1]西安理工大学机械与精密仪器工程学院,西安710048 [2]河南科技大学艺术与设计学院,河南洛阳471003

出　　处：《机械科学与技术》2017年第7期1011-1015,共5页Mechanical Science and Technology for Aerospace Engineering

基　　金：国家自然科学基金项目(51275404)资助

摘　　要：为了准确预测旋转铰磨损趋势,并能够准确的将其结果应用于磨损动力学仿真与计算,基于含间隙曲柄滑块机构的动力学模型,考虑接触过程中销轴和孔的接触面曲率半径变化趋势,建立了一种依据接触宽度变化计算的曲率半径外推法磨损仿真模型,并利用计算结果,对机构的磨损动力学变化趋势进行了仿真研究,得到销轴在系统不同载荷下的受力分布规律、磨损规律以及动力学特征,找到了系统功能退化的规律。In order to predict the trend of joint wear, and the result was applied to the wear can accurately make the dynamics simulation and calculation, based on the dynamic model for slider-crank mechanism with clearance, considering the contact journal and bear interface curvature radius in the process of change trend, a basis for calculating the radius of curvature of contact width change extrapolation wear simulation model is established, and with the calculated results, the wear dynamics change of mechanism is simulated, the stress distribution and the wear roles and dynamic characteristics of pin shaft under different load are gotten, the laws of the function of system degradation is found.

关 键 词：含间隙旋转铰 轴孔磨损 曲率外推法 曲柄滑块机构 磨损动力学 

分 类 号：TH212[机械工程—机械制造及自动化] TH213.3