基于联立约束法的变胞机构动力学仿真研究  

Dynamics Simulation of Metamorphic Mechanism Based on the Simultaneous Constraint Method

作　　者：梁栋[1,2] 金国光[1,2] 畅博彦[1,2] 魏展[1,2] 

机构地区：[1]天津工业大学机械工程学院,天津300387 [2]天津市现代机电装备技术重点实验室,天津300387

出　　处：《机械科学与技术》2012年第10期1664-1669,共6页Mechanical Science and Technology for Aerospace Engineering

基　　金：国家自然科学基金项目(51275352);天津市应用基础及前沿技术研究计划项目(09JCYBJC04600)资助

摘　　要：变胞机构作为一种新型机构在工程领域有着广泛的应用。用联立约束法对一种可以实现变轨迹的带有闭环约束的变胞机构进行了动力学建模,并用Matlab/Simulink对其进行了数值仿真分析。数值仿真结果表明,变胞机构在构态切换时运动变量和力有一定的突变,进而提出了解决突变的方法。联立约束法是一种对变胞机构进行动力学分析研究的有效方法,丰富了关于变胞机构研究的理论与方法。Acting as a new kind of mechanism, metamorphic mechanisms are widely used in engineering fields. In this paper, a dynamics model is established for a metamorphic mechanism containing closed-loop constraint by using simultaneous constraint method, and the simulation analysis is implemented using Matlab/Simulink. The results of numerical simulation show that its kinematic variables and force have sahation when the configuration changes from one to another and a method is proposed to solve this problem.

关 键 词：变胞机构 动力学 SIMULINK 仿真 

分 类 号：TH112[机械工程—机械设计及理论]