有频率约束的船体结构优化设计

Structural Optimization of Ship Hull with Frequency Constraints

为完成某集装箱船艉部结构设计,建立具有频率约束的船体结构优化设计模型,采用不同的优化方案对艉部结构进行优化,在工程造价基本保持不变的条件下,使优化后的结构不仅固有频率满足频率储备要求,而且其构件分布更为合理。

An optimization design model with frequency constraints was proposed in the process of ship structure design.A structural design case of container ship stern was used to demonstrate the proposed model.Different optimization schemes were used to find a more scientific solution.In the condition of holding the engineering cost in the line,the optimum structure has not only better frequency reserve,but also more reasonable architectural distribution.