曲柄滑块机构间隙副反力的静态间隙杆简化算法  

Stationary Clearance Link Algorithm for Solving the Counter-Force in the Clearance Revolute Joint of Crank Slider System

作　　者：陈渭[1] 于如飞[1] 李培[2] 

机构地区：[1]西安交通大学现代设计及转子轴承系统教育部重点实验室,陕西西安710049 [2]新加坡国立大学工程学院冲击力学实验室,新加坡117575

出　　处：《北京理工大学学报》2017年第1期15-18,共4页Transactions of Beijing Institute of Technology

基　　金：国家自然科学基金资助项目(51175409)

摘　　要：在含间隙运动副机构的性能评估、寿命预测等问题中,如何高效、准确地求解间隙副反力一直是一个亟待解决的问题.文中提出了一种求解含间隙曲柄滑块机构副反力的独立、高效的静态间隙杆算法.不同于Li提出的基于理想副反力的简化算法,静态间隙杆简化算法仅基于间隙副模型,脱离了理想副反力的求解,通过在间隙副模型中对间隙杆进行静态初始化,简化求得间隙副反力角,从而反代得到实际间隙副反力.该算法在间隙副反力计算上具有很好的精确度,且由于省略了求解理想副反力的过程,其效率远高于Li的简化求解算法,最后文中通过一个算例说明了静态间隙杆算法的可行性和高效性.To accurately predict the performance of mechanisms with clearance joint and estimate its life,it is very critical to efficiently and accurately calculate the counter-force in the clearance revolute joint.In this paper,an independent and efficient algorithm,stationary clearance link algorithm,was proposed to calculate the force in the clearance bearing of crank slider system based on a clearance revolute joint model.Differing from Li＇s simplified algorithm based on the force in the ideal revolute joint,the stationary clearance link algorithm is only based on a clearance revolute joint model,it is not necessary to solve the reaction-force in the ideal revolute joint and nonlinear equation group.Initializing the stationary clearance link and simplifying the clearance counter-force in the clearance model,the practical clearance counter-force could be obtained by using the stationary clearance link algorithm with more efficient than Li＇s method.At the end,the feasibility and high-efficiency of the stationary clearance link algorithm are demonstrated by an example.

关 键 词：曲柄滑块机构 间隙杆 副反力 静态间隙杆算法 

分 类 号：TH133.5[机械工程—机械制造及自动化]