J Shanghai Jiaotong Univ Sci

Journal of shanghai Jiaotong University (Science) ›› 2014, Vol. 19 ›› Issue (4): 481-487.doi: 10.1007/s12204-014-1528-0

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Particle Swarm Approach for Structural Optimization of Battleship Strength Deck Under Air Blast

Particle Swarm Approach for Structural Optimization of Battleship Strength Deck Under Air Blast

YU Hai-yang1* (于海洋), ZHANG Shi-lian1 (张世联), LI Cong2 (李聪), WU Shao-bo1 (武少波)   

  1. (1. School of Naval Architecture, Ocean and Civil Engineering, Shanghai Jiaotong University, Shanghai 200240, China; 2. Marine Design and Research Institute of China, Shanghai 200011, China)
  2. (1. School of Naval Architecture, Ocean and Civil Engineering, Shanghai Jiaotong University, Shanghai 200240, China; 2. Marine Design and Research Institute of China, Shanghai 200011, China)
  • Published:2014-10-13
  • Contact: YU Hai-yang (于海洋) E-mail: haiyang.yu@ntnu.no

Abstract: This paper presents the implementation and application of a modified particle swarm optimization (PSO) method with dynamic adaption for optimum design of a battleship strength deck subjected to non-contact explosion. The numerical simulation process is modified to be more computationally efficient so that the task is realizable. The input variables are the thickness of plates and the dimensions of stiffeners, and the total structural mass is chosen as the fitness value. In another case, the response surface method (RSM) is introduced and combined with PSO (PSO-RSM), and the results are compared with those obtained by the traditional PSO approach. It is indicated that the PSO method can be well applied in the optimum design of explosion-loaded deck structures and the PSO-RSM methodology can rapidly yield optimum designs with sufficient accuracy.

Key words: particle swarm optimization (PSO), strength deck, air blast, response surface methodology (RSM)

摘要： This paper presents the implementation and application of a modified particle swarm optimization (PSO) method with dynamic adaption for optimum design of a battleship strength deck subjected to non-contact explosion. The numerical simulation process is modified to be more computationally efficient so that the task is realizable. The input variables are the thickness of plates and the dimensions of stiffeners, and the total structural mass is chosen as the fitness value. In another case, the response surface method (RSM) is introduced and combined with PSO (PSO-RSM), and the results are compared with those obtained by the traditional PSO approach. It is indicated that the PSO method can be well applied in the optimum design of explosion-loaded deck structures and the PSO-RSM methodology can rapidly yield optimum designs with sufficient accuracy.

关键词: particle swarm optimization (PSO), strength deck, air blast, response surface methodology (RSM)

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