Journal of the Society of Naval Architects of Korea (대한조선학회논문집)

The Society of Naval Architects of Korea (대한조선학회)
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A Study on Optimal Design of Blast Hardened Bulkheads to Reduce Vulnerability against Various Hit Scenarios

함정 피격 시나리오들에 대한 취약성 감소를 위한 폭발강화격벽 최적 설계 방법 연구

  • Myojung, Kwak (R&D Institute, Daewoo Shipbuilding and Marine Engineering Co., Ltd.) ;
  • Seungmin, Kwon (R&D Institute, Daewoo Shipbuilding and Marine Engineering Co., Ltd.) ;
  • Yoojeong, Noh (School of Mechanical Engineering, Pusan National University)
  • 곽묘정 (대우조선해양(주) 중앙연구원) ;
  • 권승민 (대우조선해양(주) 중앙연구원) ;
  • 노유정 (부산대학교 기계공학부)
  • Received : 2022.08.12
  • Accepted : 2022.11.01
  • Published : 2022.12.20
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Abstract

Blast Hardened Bulkheads (BHB) are used to suppress damage propagation by internal explosions to reduce ships'vulnerability. However, for this reason, the weight of the ship inevitably increased, and other functions such as the ships'mobility were bound to deteriorate. Therefore, it is essential in the initial design of the ship to optimize the dimensions of the bulkhead to minimize the weight while decreasing the vulnerability of the ship. Research on design optimization of BHB has been conducted, but it has not considered explosive load in various hit scenarios. This study proposed an optimal design method for the curtain plate type blast hardened bulkhead, which is currently frequently applied by the Korean Navy in consideration of various hit scenarios. Using genetic algorithms, multiobjective design optimizations that minimize weight increase as well as minimize damage to ships were obtained. By optimizing the dimensions of the BHB considering various hit scenarios, the ship's vulnerability was improved while maintaining its mobility due to weight reduction.

Keywords

Acknowledgement

본 과제는 대우조선해양과 정부(과학기술정보통신부)의 재원으로 한국연구재단의 지원을 받아 수행된 연구 (No. 2020R1A5A8018822)이며, 연구비 지원에 감사드립니다.

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