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Computer-aided design/engineering of bearing systems using the Dempster-Shafer theory

Published online by Cambridge University Press:  27 February 2009

A.C. Butler ,
F. Sadeghi ,
S.S. Rao  and
S.R. LeClair
A.C. Butler
Affiliation:
 Mechanical Engineering Department, Purdue University, W. Lafayette, IN 47907-1288, USA
F. Sadeghi
Affiliation:
 Mechanical Engineering Department, Purdue University, W. Lafayette, IN 47907-1288, USA
S.S. Rao
Affiliation:
 Mechanical Engineering Department, Purdue University, W. Lafayette, IN 47907-1288, USA
S.R. LeClair
Affiliation:
 U.S. Air Force Materials Directorate, WL/MLIM, Wright-Patterson AFB, OH 45433USA
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Abstract

Research in computer-aided design/engineering (CAD/E) has focused on enhancing the capability of computer systems in a design environment, and this work has continued in this trend by illustrating the use of the Dempster-Shafer theory to expand the computer’s role in a CAD/E environment. An expert system was created using Dempster-Shafer methods that effectively modeled the professional judgment of a skilled tribologist in the selection of rolling element bearings. A qualitative and symbolic approach was used, but access to simple quantitative models was provided to the expert system shell. Although there has been significant discussion in the literature regarding modification/improvement of the Dempster-Shafer theory, Shafer’s theories were found adequate in all respects for replicating the expert’s judgment. However, an understanding of the basic theory is required for interpreting the results.

Keywords

Dempster-Shafer TheoryDesign of Bearing SystemsExpert Systems
Type
Articles
Information
AI EDAM , Volume 9 , Issue 1 , January 1995 , pp. 1 - 11
Copyright
Copyright © Cambridge University Press 1995

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