A quality-time-cost-oriented strategy for product conceptualization

Authors:
Chun-Hsien Chen;Yih Tng Chong;Wunching Chang;Wei Yan
Affiliations:
Logistics Engineering School, Shanghai Maritime University, 1550 Haigang Avenue, Shanghai 201306, PR China and School of Mechanical and Aerospace Engineering, Nanyang Technological University, 50 ...;School of Mechanical and Aerospace Engineering, Nanyang Technological University, 50 Nanyang Avenue, Singapore 639798, Singapore;Department of Mechanical Engineering, Ming Chi University of Technology, 84 Gungjuan Road, Taishan, New Taipei City 24301, Taiwan;Logistics Engineering School, Shanghai Maritime University, 1550 Haigang Avenue, Shanghai 201306, PR China
Venue:
Advanced Engineering Informatics
Year:
2012

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Abstract

In general, product development companies aim to deliver products of optimal quality while incurring minimal cost in the shortest time possible. In this work, a quality-time-cost-oriented strategy (QTCOS) is proposed to facilitate product concept generation and selection. Firstly, general sorting is employed to elicit an initial product platform. The platform, constructed with a design space framework (DSF), serves as a base for generating a preliminary range of design options. Using the repertory grids elicitation method, designers contribute importance ratings with respect to a set of time and cost criteria for the range of design options. To account for trade-offs between cost and time related concerns, these ratings are employed to reduce the number of the derived design options, and thereby used as input features to a restricted coulomb energy (RCE) neural network. The RCE network function is applied to classify the set of design options into different patterns, i.e. cost-time-pairs. The classification results can subsequently serve as bases for the selection of preferred design options. A case study on wood golf club design is conducted to illustrate the proposed QTCOS.