Feature Description Method for Contracted Graphs of Kinematic Chains and Automatic Synthesis by CAD

Abstract

In order to achieve the synthesis of contracted graphs (CGs) automatically by given associated linkages (ALs), a new feature description method is proposed and a software is constructed. First of all, a connection method substring (CMS) is proposed and the related guidelines are given. The combination of characteristic strings (CSs) and CMSs can accurately describe the type, number, and connection relationship between the basic links in a CG. Secondly, a synthesis software by computer aided design (CAD) is constructed, and the interface of the software and the main functions of the compiled programs are explained. Finally, the software operation is carried out, and the effectiveness and complexity of the implemented algorithms are proved. Taking typical ALs 1Q1T3P and 1Q6T as examples, the feature description is generated and the CGs are drawn automatically. The research results of this paper achieve one-to-one correspondence between a CG and its feature description and draws the CGs by given ALs automatically, which avoids the omission and repetition of the CGs during the synthesis process.