平面运动链简图自动绘制的初始回路法  

An Approach of Original Loop to Automatic Sketching of Planar Kinematic Chains

作　　者：伍星华[1] 聂松辉[1] 李宁波[1] 

机构地区：[1]湘潭大学机械工程学院,湘潭411105

出　　处：《机械科学与技术》2009年第4期546-552,共7页Mechanical Science and Technology for Aerospace Engineering

基　　金：湖南省教育厅优秀青年项目(08B081)资助

摘　　要：提出了一种根据平面运动链的缩杆邻接矩阵来绘制其运动链简图的新方法。首先以最大构件度基杆为首杆搜索出一个长度最大的回路,即初始回路,然后根据构件之间的连接关系生成各其它回路。相对于初始回路,判断各其它回路之间的交叉关系,若各其它回路之间存在交叉,则修正初始回路和各其它回路。以修正后的初始回路为外环,各其它回路为内环,将外环的各运动副布置在外部同心圆上、内环的运动副布置在内部各同心圆上,绘制出无交叉的运动链简图。通过实例验证了这种方法的有效性和完备性。We present a new approach to automatic sketching of planar kinematic chains from its contracted adjacency matrix. We let the link with maximal link degrees be the starting link to search a original loop. Then we use the original loop to generate the other loops according to the connecting relationship of links. The crossing relationships of the other loops are identified with respect to the original loop. If crossings exist between the other loops then the original loop and the other loops are modified. Finally, we let the original loop be the outer loop and the other loops be the inner loops, and lay the kinematic pairs of the outer loop on the outer concentric circle and the kinematic pairs of inner loops on each of the inner concentric circles to sketch out the non-crossing sketching. Some examples are given to illustrate the reliability and robustness of the approach.

关 键 词：缩杆邻接矩阵 初始回路 其它回路 简图绘制 

分 类 号：TH112[机械工程—机械设计及理论] TP391[自动化与计算机技术—计算机应用技术]