复杂覆盖件均匀成形的动态调控
Dynamically Regulating and Controlling of Uniform Forming for Complicated Auto Panel
赵茂俞1，2， 薛克敏3， 李 萍3
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作者单位：（1. 合肥学院 机械工程系，安徽 合肥 230022；2. 中国科学技术大学 化学与材料科学学院，安徽 合肥 230026；3.合肥工业大学 材料科学与工程学院，安徽 合肥 230009）
中文关键字：覆盖件； 数值模拟； 均匀成形； 动态调控； 多目标优化
英文关键字：auto panel; simulation; uniform forming; dynamic regulation-control; multi-objective optimization
中文摘要：将压边力、拉深筋高度、凸筋圆角半径和凹筋圆角半径作为自变量，以正交试验为设计方案，模拟右托架覆盖件成形，获得成形质量目标破裂、起皱和厚度最大变薄率的数据。运用层次分析法计算多目标质量的权重，运用灰色系统理论计算每个细分成形过程的多目标质量的关联系数与关联度，获得该覆盖件拉深过程优化的压边力、拉深筋阻力工艺参数的最佳动态匹配。进一步运用动态调控的工艺参数组合进行有限元模拟验证，仿真结果表明成形质量明显提高。
英文摘要：The forming of auto panel right beam was simulated by finite element software while the blank holder force and depth, die radius, punch radius of draw bead were independent variables, the forming quality object data about the crack, winkle and the thinning were obtained by orthogonal experiment. And the weights of multi-object were calculated by analytic hierarchy process, the grey correlation coefficients and the grey relational degrees of multi-objective were all calculated by the grey theory system while forming course was in subdivision condition. Then, the dynamic optimization process parameters of blank holder forces and draw bead resistances were attained. Furthermore, employing the dynamic regulation-control optimization data to numerically simulate the auto panel forming, the results show that the forming quality obviously improves.