Relationship between coupler curve properties of a 4-bar linkage and its dimensional types

查看全文 作　　者：CHU Jinkui WANG Liding WU [1]Chen 机构地区：[1]Key Laboratory for Dalian University of Technology Precision & Non-traditional Machining of Ministry of Education, Dalian 116023, China Key Laboratory for Dalian University of Technology Precision & Non-traditional Machining of Ministry of Education, Dalian 116023, China Key Laboratory for Dalian University of Technology Precision & Non-traditional Machining of Ministry of Education, Dalian 116023, China 出　　处：《Science China(Technological Sciences)》索引2004年第47卷第4期,共9页 基　　金：the National Natural Science Foundation of China (Grant No.50135040) ; the Natural Science Fund of Shaanxi Province. 摘　　要：Three types of 4-bar linkages can trace the same coupler curve according to the cognate mechanism law. Based on the investigation of the relationship between dimensions of a linkage and the harmonic component characteristic parameters of the coupler curve of the linkage, it was found that six types of linkages are related to the same coupler curve, and they belong to two groups of cognate mechanisms, in which the coupler curves have the same shape and are symmetric. The relationships among the dimensional types of these six mechanisms are presented. The corresponding examples have also proved these conclusions. This work enriches the cognate mechanism law, and can result in more candidate mechanisms for mechanism dimensional synthesis. 关 键 词：4-bar linkages, cognate mechanisms, DIMENSIONAL type.