Jurnal Teknik Industri
Vol 9, No 2 (2007): DECEMBER 2007

FUZZY MODELING APPROACH AND GLOBAL OPTIMIZATION FOR DUAL RESPONSE SURFACE


Prastyo, Dedy Dwi ( International Management Department, Institute of Business Management and Technology, Surabaya ) , Akbar, Muhammad Sjahid ( Faculty of Mathematics and Natural Sciences, Sepuluh Nopember Institute of Technology (ITS), Surabaya ) , Otok, Bambang Widjanorko ( Faculty of Mathematics and Natural Sciences, Sepuluh Nopember Institute of Technology (ITS), Surabaya )



Article Info

Publish Date
31 Jan 2008

Abstract

Dual Response Surface (DRS) with Lagrange multiplier is one of the most familiar classical multi response surface methods. Classical DRS optimization doesn´t concern about the quality characteristic of responses. In this paper, fuzzy approach is proposed for modeling DRS and quality characteristic of response simultaneously. The proposed method represented the object´s quality characteristic physically. The proposed method is applied to composite carbon drilling process and resulting nonlinear function that to be determined its optimal point. Many optimization methods fail to reach global optimum point because the non linear function is multimodal. Therefore, we used genetic algorithm for finding the global optimum point.


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