Knowledge acquisition is a big bottleneck in any expert system development. Several “rules-of-thumb” are developed for designing linkage-type dwell mechanisms. These rules of thumb are based on path curvature theory (Part 1 of this paper) and systematic synthesis, analysis and classification of straight-line, circular-arc and symmetrical coupler-curve generating linkages. The methods of representing the domain-specific knowledge in an expert system are discussed here. “Frames” for structural representation of knowledge and “production rules” to control the reasoning during the design process are proposed here. Frames and rules, in the light of dwell-mechanism synthesis are presented. Finally, a conceptual design example illustrates the various stages that the actual expert system goes through in the design process when these concepts are fully developed and programs are written out in LISP. These concepts are developed with an eye toward future development of a general expert system for type and dimensional synthesis of mechanisms.
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September 1987
This article was originally published in
Journal of Mechanisms, Transmissions, and Automation in Design
Research Papers
Development of Knowledge Base for Designing Linkage-Type Dwell Mechanisms: Part 2—Application
Sridhar Kota,
Sridhar Kota
Productivity Center, Department of Mechanical Engineering, University of Minnesota, Minneapolis, MN 55455
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Arthur G. Erdman,
Arthur G. Erdman
Productivity Center, Department of Mechanical Engineering, University of Minnesota, Minneapolis, MN 55455
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Donald R. Riley
Donald R. Riley
Productivity Center, Department of Mechanical Engineering, University of Minnesota, Minneapolis, MN 55455
Search for other works by this author on:
Sridhar Kota
Productivity Center, Department of Mechanical Engineering, University of Minnesota, Minneapolis, MN 55455
Arthur G. Erdman
Productivity Center, Department of Mechanical Engineering, University of Minnesota, Minneapolis, MN 55455
Donald R. Riley
Productivity Center, Department of Mechanical Engineering, University of Minnesota, Minneapolis, MN 55455
J. Mech., Trans., and Automation. Sep 1987, 109(3): 316-321 (6 pages)
Published Online: September 1, 1987
Article history
Received:
July 1, 1986
Online:
November 19, 2009
Citation
Kota, S., Erdman, A. G., and Riley, D. R. (September 1, 1987). "Development of Knowledge Base for Designing Linkage-Type Dwell Mechanisms: Part 2—Application." ASME. J. Mech., Trans., and Automation. September 1987; 109(3): 316–321. https://doi.org/10.1115/1.3258796
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