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首页> 外文期刊>International Journal of Production Research >Clamping-sequence optimisation based on heuristic algorithm for sheet-metal components
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Clamping-sequence optimisation based on heuristic algorithm for sheet-metal components

机译:基于启发式算法的钣金件夹紧顺序优化

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摘要

The traditional clamping-sequence optimisation of sheet-metal parts requires many complicated finite element analyses, and clamping-sequence planning does not account for the springback from clamp-release. Therefore, this paper proposes a new optimisation method based on a heuristic algorithm. We first propose a new contact model of parts, clamps and supporting locators to analyse assembly deformation. Then, we use the distance between the actual and nominal positions to evaluate the clamp layout. Finally, we apply the heuristic algorithm to optimise the clamping sequence. We illustrate the proposed method with a case study of a taillight bracket, whose results show that the method of clamping-sequence optimisation can effectively decrease the deformation of sheet metal from clamping.
机译:传统的钣金零件夹紧顺序优化需要进行许多复杂的有限元分析,并且夹紧顺序规划不能解决夹紧释放的回弹问题。因此,本文提出了一种基于启发式算法的优化方法。我们首先提出一个零件,夹具和支撑定位器的新接触模型来分析装配变形。然后,我们使用实际位置与名义位置之间的距离来评估夹具的布局。最后,我们应用启发式算法优化夹紧顺序。我们以尾灯支架为例来说明所提出的方法,其结果表明,夹紧顺序优化方法可以有效地减少由于夹紧而导致的钣金变形。

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