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Research Papers

Multiagent Shape Grammar Implementation: Automatically Generating Form Concepts According to a Preference Function

[+] Author and Article Information
Seth Orsborn

Department of Interdisciplinary Engineering, Missouri University of Science and Technology, Rolla, MO 65409orsborns@mst.edu

Jonathan Cagan

Department of Mechanical Engineering, Carnegie Mellon University, Pittsburgh, PA 15213cagan@cmu.edu

J. Mech. Des 131(12), 121007 (Nov 12, 2009) (10 pages) doi:10.1115/1.4000449 History: Received January 25, 2008; Revised August 27, 2009; Published November 12, 2009; Online November 12, 2009

In new product development, quickly generating many product form concepts that a potential consumer prefers is a challenge. This paper presents the inaugural multiagent shape grammar implementation (MASGI) to automatically generate product form designs according to a preference function that can represent designer or consumer design preference. Additionally, the multiagent system creates a flexible shape grammar implementation that enables modifications to the shape grammar as the form design space changes. The method is composed of three subprocesses: a shape grammar interpreter that implements the shape grammar, an agent system that chooses which shape grammar rules to implement and the parametric design choices according to a preference function, and a preference investigator that determines the preference function, which constraints the automated form design process.

Copyright © 2009 by American Society of Mechanical Engineers
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References

Figures

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Atomic and MASGI sequences

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SUV characteristics and attributes

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Characteristics and rules tree for implementation

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Agent-rule matrix

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Agent system process

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Shape grammar interpreter process

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Characteristic agent pseudocode

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Shape grammar rule pseudocode

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Before headlight rule application

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After headlight rule application

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Preference investigator process

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Respondent 30 high utility design 1

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Respondent 30 neutral utility design 2

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Respondent 30 low utility design 6

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Wheel and hood rules

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General modification rules

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