船体结构设计最优化理论经典算法分析

Analysis of Classical Algorithm for Hull Structural Design Optimization Theory

针对无约束优化问题经典算法,着重采用最速下降法和阻尼牛顿法进行比对,以求解所述的无约束问题。结果表明,采用阻尼牛顿法较最速下降法具有更快的收敛速度,但阻尼牛顿法不能保证收敛性,必须保证合适的初始设置才可以得到正确的结果。

The classical algorithm for unconstrained optimization problems is emphasized by using the steepest descent method and the damped Newton method to solve the unconstrained problem. The results show that the damped Newton method has faster convergence speed than the steepest descent method, but the damped Newton method can not guarantee the convergence, and the correct initial setting must be ensured to get the correct result.