Automating Linear Tolerance Analysis Across Assemblies

[+] Author and Article Information
N. P. Juster, A. de Pennington

Department of Mechanical Engineering, University of Leeds, Leeds LS2 9JT, United Kingdom

P. M. Dew

School of Computer Studies, University of Leeds, Leeds LS2 9JT, United Kingdom

J. Mech. Des 114(1), 174-179 (Mar 01, 1992) (6 pages) doi:10.1115/1.2916912 History: Received November 01, 1990; Online June 02, 2008


One of the tests carried out by designers in an attempt to check whether an assembly of components will function correctly is tolerance analysis. Tolerance analysis, although relatively straightforward, is liable to be time consuming and error prone. It cannot be automated unless a suitable mathematical framework is developed to model the variations introduced by the manufacturing process. The designer allows for the variations by means of tolerances attached to the dimensions. This paper describes a suitable mathematical model and shows how it may be used to automate linear worst case tolerance analysis across assemblies. Experimental software has been written, based on the theory.

Copyright © 1992 by The American Society of Mechanical Engineers
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