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http://dx.doi.org/10.3795/KSME-A.2011.35.7.729

TOPSIS-Based Multi-Objective Shape Optimization for a CRT Funnel  

Lee, Kwang-Ki (VP Korea)
Han, Jeong-Woo (System Engineering Research Division, KIMM)
Han, Seung-Ho (Dept. of Mechanical Engineering, Dong A Univ.)
Publication Information
Transactions of the Korean Society of Mechanical Engineers A / v.35, no.7, 2011 , pp. 729-736 More about this Journal
Abstract
The technique for order preference by similarity to ideal solution (TOPSIS) is regarded as a classical method of multiple attribute decision making (MADM), often used to solve various decision-making or selection problems. It is based on the concept that the chosen alternative should have the shortest distance from the positive ideal solution and the farthest distance from the negative ideal solution. The TOPSIS can be applied to a design process for carrying out multi-objective shape optimization wherein the best and worst alternatives are to be decided. In this paper, multi-objective shape optimization using the TOPSIS and Rational Bezier curve was applied to the funnel of a cathode-ray tube (CRT). In order to minimize the weight and first principal stress, a new multi-objective shape optimization methodology is proposed, wherein the relative-closeness coefficients of the TOPSIS are defined as the performance indices of a multi-objective function and evaluated by response surface models. This methodology enables the designer to decide on the best solution from a number of design specification groups by examining the various conflicts between the weight and the first principal stress.
Keywords
TOPSIS(Technique for Order Preference by Similarity to Ideal Solution); Multi-objective Shape Optimization; CRT Funnel; Design of Experiments; Rational Bezier Curve; MADM(Multi-Attribute Decision Making);
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Times Cited By KSCI : 5  (Citation Analysis)
Times Cited By SCOPUS : 0
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