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

作　　者：白雪 侯思微 BAI Xue;HOU Siwei(No.92337 of PLA, Dalian 116023, Liaoning, China;The Society of China Shipbuilding Engineering, Beijing 100001, China)

机构地区：[1]中国人民解放军92337部队,辽宁大连116023 [2]中国造船工程学会,北京100001

出　　处：《机电设备》2019年第5期67-69,75,共4页Mechanical and Electrical Equipment

摘　　要：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.

关 键 词：约束优化 最速下降法 阻尼牛顿法 一维搜索 黄金分割法 

分 类 号：U661.4[交通运输工程—船舶及航道工程]