So, in this paper, a new method of structure design optimization is induced to which both BP neural networks and genetic algorithms (in short: BPN-GA) are applied.

• 针对这一问题，本文提出了将BP神经网络和遗传算法相结合用于结构优化设计的方法，并编制了相应的计算程序，实现了一个含9个设计变量的发动机盘模型的结构优化计算。