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

A. C. Butler, F. Sadeghi, S. S. Rao, S. R. Leclair

Research output: Contribution to journalArticlepeer-review

14 Scopus citations


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.

Original languageEnglish (US)
Pages (from-to)1-11
Number of pages11
JournalArtificial Intelligence for Engineering, Design, Analysis and Manufacturing
Issue number1
StatePublished - Jan 1995
Externally publishedYes


  • Dempster-Shafer Theory
  • Design of Bearing Systems
  • Expert Systems

ASJC Scopus subject areas

  • Industrial and Manufacturing Engineering
  • Artificial Intelligence


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