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The optimum design for 75.5k DWT bulk carrier using the multi-object modified artificial life algorithm by CSR rule

CSR규정에 따른 수정 인공생명 알고리즘을 이용한 75.5k DWT 산적화물선의 최적설계

  • Bae, Dong-Myung (Department of Naval Architecture and Marine Systems Engineering, Pukyong National University) ;
  • Kim, Hag-Soo (Transport Machinery Examination Division, Korean Intellectual Property Office) ;
  • Zakki, Ahmad Fauzan (Department of Naval Architecture and Marine Systems Engineering, Pukyong National University)
  • 배동명 (부경대학교 조선해양시스템공학과) ;
  • 김학수 (특허청 운반기계심사과) ;
  • Received : 2012.03.22
  • Accepted : 2012.05.01
  • Published : 2012.05.31

Abstract

The CSR rule was defined by IACS as the unified rule for a commercial ship like a bulk carrier and a tanker. It have been required more strict conditions for various parts like loading conditions, the local and girder strength, fatigue strength, FEM for the ship rule. It was changed in many parts of the ship rules. In this paper, the mid-parts of 17.5K DWT bulk carrier were optimized by the CSR rule. On the other hand, the modified artificial life algorithms with multi-object functions were developed for optimizing the scantling. It is possible to find multi-global optimum solutions in the multi-object functions. And it is faster and efficient than the artificial life algorithm. First, to be optimizing the scantling and the weight by CSR rule, that is calculated by the CSR rule. The next, the result is re-calculated by the modified artificial life algorithm with multi-object functions. The optimized results which are satisfied with the CSR rule like the minimum size and the thickness of stiffener and the minimum cost have been searched by the optimizing algorithm. And the results have been compared with the non-optimizing results.

Keywords

Artificial life algorithm;CSR rule;Multi-object function

Acknowledgement

Supported by : 부경대학교

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