A Catalog of Higher Pairs and Their Configuration Spaces
Report ID: TR-424-93Author: Joskowicz, Leo / Sacks, Elisha
Date: 1993-06-00
Pages: 25
Download Formats: |Postscript|
Abstract:
We illustrate the HIPAIR kinematic analysis program for higher pairs on twenty examples from Artobolevsky's encyclopedia of mechanisms. For each example, we show the pair, present its configuration space, explain its structure and behavior, and list its reference number in the encyclopedia. All the figures ar e direct program output. HIPAIR is the first comprehensive kinematic analysis program for higher pairs. It covers pairs of 2.5D parts with two degrees of freedom, including ones with intermittent, simultaneous, and degenerate contacts. This class contains 90\% of 2.5D pairs and 80\% of all higher pairs according to our survey of 2500 mechanisms. It analyzes pairs of average shape complexity in five seconds and pairs with several thousand features in one minute. HIPAIR facilitates the design and analysis of multipart mechanisms that contain higher pairs. It helps designers detect part interference, establish part clearances, identify functional surfaces, and find jamming and lock-up configurations.