基于模拟退火算法的舰船中剖面优化设计

舰船中剖面优化设计中的设计变量应为连续和离散的混合变量，文中引入的模拟退火算法能很好地解决连续和离散混合设计变量的优化问题，将经过改进的模拟退火算法应用到舰船中剖面结构优化设计中，实船的优化计算算例取得了合理的结果，由此表明，应用模拟退火算法进行舰船中剖面结构优化设计是可行且高效的，可在工程结构优化设计领域中推广应用。

Optimum Design of Midship Section Based on Simulated Annealing Algorithm

In the midship section optimum design, the design variables include continuous variables and discrete ones. How to solve the mixed variables optimum problems has drawn great attention from the ship building field. In this paper, a new optimum technology, simulated annealing (SA), which can solve the mixed variables optimum problem was introduced. The outstanding advantage of SA contrast to other optimum methods is that it can find the global optimum solution. In addition, SA does not depend on the initial solution, so it can greatly reduce the incipient work on choosing a proper initial solution. SA also has several refined forms (memory, tempering, heat annealing etc.) which can be used intelligently according to the different requirement of the optimum problem. A refined form of SA (tempering annealing with memory function) was applied in the structural optimum design of the midship section of a real ship in this paper and the ideal and reasonable result was obtained, which shows that SA is feasible and effective in the optimum design of the midship section and can be used in other engineering optimum design field.