Automation of linear tolerance charts and extension to statistical tolerance analysis

Zhengshu Shen, Jami J. Shah, Joseph K. Davidson

Research output: Chapter in Book/Report/Conference proceedingConference contribution

12 Scopus citations

Abstract

Manual construction of tolerance charts is a popular technique for analyzing tolerance accumulation in parts and assemblies. But this technique has some limitations: (1) it only deals with the worst-case analysis, and not statistical analysis (2) it is time-consuming and error-prone (3) it considers variations in only one direction at a time, i.e. radial or linear. This paper proposes a method to automate 1-D tolerance charting, based on the ASU GD&T global model and to add statistical tolerance analysis functionality to the charting analysis. The automation of tolerance charting involves automation of stackup loop detection, automatic application of the rules for chart construction and determination of the closed form function for statistical analysis. The automated analysis considers both dimensional and geometric tolerances defined as per the ASME Y14.5 - 1994 standard at part and assembly level. The implementation of a prototype charting analysis system is described and two case studies are presented to demonstrate the approach.

Original languageEnglish (US)
Title of host publicationProceedings of the ASME Design Engineering Technical Conference
Pages77-88
Number of pages12
Volume1 A
StatePublished - 2003
Event2003 ASME Design Engineering Technical Conferences and Computer and Information in Engineering Conference - Chicago, IL, United States
Duration: Sep 2 2003Sep 6 2003

Other

Other2003 ASME Design Engineering Technical Conferences and Computer and Information in Engineering Conference
CountryUnited States
CityChicago, IL
Period9/2/039/6/03

ASJC Scopus subject areas

  • Engineering(all)

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