Imprecision in Engineering Design

[+] Author and Article Information
E. K. Antonsson

Engineering Design Research Laboratory, Division of Engineering and Applied Science, California Institute of Technology, Pasadena, CA

K. N. Otto

Department of Mechanical Engineering, Massachusetts Institute of Technology, Cambridge, MA

J. Vib. Acoust 117(B), 25-32 (Jun 01, 1995) (8 pages) doi:10.1115/1.2838671 History: Received September 01, 1994; Revised January 01, 1995; Online February 26, 2008


Methods for incorporating imprecision in engineering design decision-making are briefly reviewed and compared. A tutorial is presented on the Method of Imprecision (MoI), a formal method, based on the mathematics of fuzzy sets, for representing and manipulating imprecision in engineering design. The results of a design cost estimation example, utilizing a new informal cost specification, are presented. The MoI can provide formal information upon which to base decisions during preliminary engineering design and can facilitate set-based concurrent design.

Copyright © 1995 by The American Society of Mechanical Engineers
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