摘要:
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通过ParaMesh和网格模型转换接口程序建立了S形件成形的参数化有限元模型并进行参数化有限元分析(PFEA)。把人工神经网络(ANN)和遗传算法(GA)相结合进行工艺优化设计,研究了S形件翻边成形中的工艺参数优化。然后利用优化的结果值进行验算并与实验结果进行对比,获得了良好的结果,表明基于PFEA、ANN和GA进行成形工艺参数优化,不仅可行而且实用。
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The parameterized finite element model of S-shaped pieces in forming was set up by ParaMesh.The interface procedure of the finite element model transformation and parameterized finite element analysis(PFEA) were finished.Technological parameter optimization design was researched by combining ANN and GA in forming S-shaped pieces.The favorable result was achieved while contrasting the optimized value with the experiment value.It shows that it is not only practical,but also feasible to optimize the technological parameter of S-shape pieces forming based on PFEA/ANN/GA.
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基金项目:
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井冈山学院自然科学基金研究项目(JZ0605);;
井冈山学院机械电子工程校重点学科资助项目
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作者简介:
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参考文献:
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[1]谢世坤.参数化网格划分及其在板料成形有限元分析中的应用[D].南昌:南昌大学,2005.
[2]谭建豪,章兢.基于正交规划的最优模锻工艺方案设计准则实验研究[J].锻压技术,2006,31(2):97-101.
[3]谢世坤,黄菊花,杨国泰.CAD/CAE集成中的有限元模型转换之研究[J].中国机械工程,2005,16(5):428-431.
[4]谢世坤,黄菊花,杨国泰,等.复杂空间曲面的参数化网格划分方法研究[J].塑性工程学报,2005,12(1):29-33.
[5]肖冠云,谢世坤,黄菊花,等.基于PFEA、ANN和GA的U形件成形板料形状优化[J].模具工业,2006,32(12):1-2.
[6]Nader Asnafi.On stretch and shrink flanging of sheet alumi-num by fluid forming[J].Materials Processing Technology,1999,96:198-214.
[7]谢世坤,黄菊花,杨国泰,等.基于动力显式算法的汽车覆盖件成形过程有限元模拟[A].第三届华北塑性加工学术会议论文集[C].包头,2004.71-75.
[8]Hecht-Nielsen R.Theory of the back-Propagation neural net-work[A].Proceedings of the International Joint Conferenceon Neural Networks[C].Washington D C,1989.593-605.
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