Determination of hammering sequence in incremental sheet metal forming using a genetic algorithm
Determination of hammering sequence in incremental sheet metal forming using a genetic algorithm
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DOI：
10.1016/0924-0136(96)02371-0
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发表时间：
1996-06
影响因子：
6.3
通讯作者：
K. Mori;M. Yamamoto;K. Osakada
中科院分区：
文献类型：
--
作者：
K. Mori;M. Yamamoto;K. Osakada
提出了一种基于遗传算法的板料渐进成形锤击顺序的确定方法。在渐进成形中，将板材锤击到所需曲率分布的顺序确定为组合优化问题。板被建模为具有许多用锤子加工的编号点，并且在恒定载荷下变形。在遗传算法中，设置具有锤击点的组合的一组个体，并且通过使用选择、交叉和变异操作来优化组合，以便最小化与期望曲率分布的差异。以半球形凸模和平凹模渐进成形铝合金方板为例，分析了其锤击顺序。
A method for determining hammering sequences in incremental forming of sheets is proposed on the basis of the genetic algorithm. The determination of the sequences for hammering the sheet to a desired distribution of curvature in incremental forming is treated as a combinatorial optimisation problem. The sheet is modelled to have many numbered points worked with a hammer and is deformed under a constant load. In the genetic algorithm, a group of individuals having a combination of the hammering points is set, and the combinations are optimised by using selection, crossover and mutation operations in order to minimise the difference from the desired curvature distribution. The hammering sequences in incremental forming of aluminium square sheets with a hemispherical punch and a flat die are chosen as an example.