Date of Original Version

1989

Type

Technical Report

Rights Management

All Rights Reserved

Abstract or Description

Designers usually complete the design with nominal dimensions and allocate tolerances only at the drawing stage. This practice can cause the following problems: (1) unnecessarily tight tolerances that require expensive manufacturing processes, (2) parts whose proper functioning is contingent on excessively tight tolerances, and (3) situations whcre slight wear on a part can seriously modify the bchavior of the device. There is a need for computer-bascd techniques which will allow designers to invcstigate Lhe erfect of manufacturing tolerances on the function their design performs. This paper presents a means for capturing the kinematic behavior of a device and relating it to the tolerances on it’s components. Behavior is represented using a configuration space representation, which we argue will be a useful tool for designers.

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