基于SQP优化算法的滑行艇结构设计

Hull structure design for planing craft based on SQP optimize arithmetic method

针对滑行艇艇体结构开展优化设计研究。根据其结构特点,建立艇体结构的优化模型,运用序列二次规划(SQP)算法对该优化模型进行计算。详细介绍了运用MATLAB编程实现该优化计算的步骤;利用该优化算法对滑行艇艇体的部分结构进行优化计算;并与规范计算结果比较。结果表明:艇体结构材料的利用率提高,有效降低了艇体重量。最后运用有限元分析法对优化后的艇体结构进行了单元应力校核,确保艇体结构满足要求。表明SQP算法对滑行艇艇体结构优化有效,具有一定的工程参考价值。

Research on optimize design for planing craft structure is undertaken. According to the characteristic of planing craft structure, the optimized model for hull structure was established. Then the Sequential Quadratic Programming （SQP） method was presented to calculate the optimize model. The process of optimized calculation by MATLAB for this model was introduced in detail. Secondly, the optimize arithmetic method was used to the part of the planing craft structure. The optimized result was compared with the criterion calculation results, which showed that the utilize rate of the hull structure material was advanced by this method. Finally, the cell stress check for the optimized structure was done using the Finite Element Method Analysis, which insured that the optimized hull structure met the stress request. And it showed that the SQP optimization arithmetic method was effective to optimize the planing craft structure.