Relating Tolerances and Kinematic Behavior - Robotics Institute Carnegie Mellon University

Relating Tolerances and Kinematic Behavior

David Bourne, Dundee Navin-Chandra, and R. Ramaswamy
Tech. Report, CMU-RI-TR-89-10, Robotics Institute, Carnegie Mellon University, May, 1989

Abstract

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 confiyration space representation, which we argue will be a useful tool for designers.

BibTeX

@techreport{Bourne-1989-15465,
author = {David Bourne and Dundee Navin-Chandra and R. Ramaswamy},
title = {Relating Tolerances and Kinematic Behavior},
year = {1989},
month = {May},
institute = {Carnegie Mellon University},
address = {Pittsburgh, PA},
number = {CMU-RI-TR-89-10},
}