航天用高强高韧钢的优化研究

Optimization of High Strength and High Fracture Toughness Steels for Spaceflight

提出了一种新的优化模式，解决了航天用高强高韧钢需要同时对两个性能指标进行优化的问题。并将模拟退火算法与人工神经网络相结合，建立了双输出优化系统。为解决多变量非线性复杂系统的双指标优化提供了一种新的有效方法。根据对断裂韧性的不同要求给出了３种不同的优化方案。

A new optimization mode is proposed. The twotarget optimization problem for high strength and high fracture toughness steels used for spaceflight is solved successfully. The twooutput optimization system is established by combining simulated annealing algorithm with artificial neural network. A new method of twotarget optimization for multivariable nonlinear complicated system is given. Three optimization plans are proposed according to different demand for fracture toughness of steels.