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J. Ocean Eng. Technol. > Volume 26(1); 2012 > Article
J. Ocean Eng. Technol. 2012;26(1):41-46.    
DOI: https://doi.org/10.5574/KSOE.2012.26.1.041   

Taguchi Robust Design of Tracked Vehicle for Manganese Nodule Test Miner in Collecting Operation Considering Deep-sea Noise Factors
Cho Su-Gil,Lee Min-Uk,Lim Woo-Chul,Choi Jong-Su,Kim Hyung-Woo,Lee Chang-Ho,Hong Sup,Lee Tae-Hee
Department of Automotive Engineering Hanyang Univ.,Department of Automotive Engineering Hanyang Univ.,Department of Automotive Engineering Hanyang Univ.,Department of Automotive Engineering Hanyang Univ.,Ocean System Engineering Research Department K
심해 잡음인자를 고려한 망간단괴 시험집광기의 채집운용시 주행장치 다구치 강건설계
조수길,이민욱,임우철,최종수,김형우,이창호,홍섭,이태희
한양대학교 대학원 자동차공학과,한양대학교 대학원 자동차공학과,한양대학교 대학원 자동차공학과,한양대학교 대학원 자동차공학과,한국해양연구원 해양시스템연구부,한국해양연구원 해양시스템연구부,한국해양연구원 해양시스템연구부,한양대학교 대학원 자동차공학과
© 2012 The Korean Society of Ocean Engineers     Open access / Under a Creative Commons License
Keywords: Robust Design, Taguchi Method, Deep-sea Manganese Nodule Miner
핵심용어: 강건설계, 다구치 법, 심해저 망간단괴 집광기
Abstract
A deep-sea manganese nodule miner consists of 4 parts: the pickup device, crusher, disposal device, and tracked vehicle. The tracked vehicle is an essential component to keep the self-propelled miner moving across deep-sea soil. The performances of the tracked vehicle are influenced by noise factors: the shear strength of the seafloor, bottom current, seafloor slope, track speed, reaction forces of flexible hose, etc. It is necessary to adopt a robust design method that improves the performances and minimizes the variation caused by noise factors. Taguchi's method, the most widely known robust design method, searches for the robust optimum using an orthogonal array composed of the product of the inner array and outer array. In this paper, we propose a new screening technique to reduce the number of input factors and apply the MRSN (Multi-Response Signal to Noise) ratio to convert multiple performances into single one in order to overcome the difficulties and limitations of using Taguchi's method in a case with many input factors and multiple performances. A test miner was already designed and tested. It has about 1/10 the capacity of a commercial one and was successfully operated at an in-shore area. Taguchi's robust design was applied to the tracked vehicle of the test miner, and design improvements were implemented for the vehicle.
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