空间二自由度连杆机构设计  

Design of a 2-DOF spatial linkage mechanism

作　　者：周忆[1] 董元伟[1] 何洁[1] 屠凯[1] 

机构地区：[1]重庆大学机械工程学院,重庆400030

出　　处：《重庆大学学报（自然科学版）》2008年第8期859-863,868,共6页Journal of Chongqing University

基　　金：教育部重点科技资助项目(01146)

摘　　要：应用ADAMS分析软件的相关模块,建立某空间二自由度连杆机构的三维模型,进行运动分析和仿真,分析表明该机构能满足设计要求,为机构重要部件的设计和控制提供了基础;同时,对影响机构运动精度的主要因素进行分析和设计,结果表明机构中两脚长度的误差灵敏度远大于其它设计变量的灵敏度,因此,双脚架机构的精度设计是达到总体精度的关键,这为机构的设计、制造、安装以及控制提供了可靠的理论依据。A 3D-model of a 2-DOF spatial linkage mechanism was built using ADAMS. Kinematic analysis and simulation of the model were performed. The analysis results show that this mechanism meets the design requirements, which provides the basis for further design and control of the mechanism. The main factors that have an impact on mechanism precision subsequently were analyzed and designed. The results show that the sensitivity of the two legs＂ lengths ranks higher than that of the other design variables. Therefore, the precision design of the bipod is the key point to achieve mechanism precision. The study provides a theoretical foundation for the design, manufacture, assembly, and control of the mechanism.

关 键 词：空间机构 运动仿真 精度设计 

分 类 号：TH113.2[机械工程—机械设计及理论]