含柔性梁机械系统动力学分析的有限段方法  

Finite-segment Method of Dynamic Analysis of Mechanical System with Beam-like Flexible Bodies

作　　者：金国光[1] 刘又午[1] 张明成 王树新[1] 张大均 

机构地区：[1]天津大学机械工程学院,天津300072 [2]郑州工业大学机械与电子工程学院,河南郑州450002

出　　处：《郑州工业大学学报》2000年第1期23-25,共3页Journal of Zhengzhou University of Technology

摘　　要：机械系统动态性能的好坏将直接影响系统的安全性与可靠性 ,因此 ,在对机械系统进行动力学分析时 ,计及各部件 (或构件 )变形的影响就显得非常必要 .当系统中含有梁式结构的构件时 (如凸轮机构、连杆机构等 ) ,常应用有限段方法建立系统动力学模型并对其进行动力学分析 .依据Kane方程 ,建立了梁式柔性体动力学的有限段模型 ,并编制了该方法的应用程序 .算例表明 ,有限段方法是分析梁式结构机械系统动态性能的一种简单。It is well known that the safety and reliability is directly affected by the dynamic qualities of a mechanical system.So,it is necessary to consider the deformations of members of a mechanical system when we deal with dynamic problems.Dynamic equations of a mechanical system with beam-like flexible bodies are conveniently formed by means of finite-segment method——especially in system such as cam mechanism and linkage.In this paper,finite-segment dynamic equations for beam-like flexible body are given based on Kane's equations.And then computing program is formed according to the dynamic equations.A numerical simulation example is given in order to show the application of this method.The results show that finite-segment method is a simple and effective analytical procedure for beam-like flexible bodies.

关 键 词：动力学 有限段方法 机械系统 柔性梁 安全性 

分 类 号：TH113[机械工程—机械设计及理论]