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Abstract：
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The numerical simulation of parabolic shaped collector is carried out in this paper, various FEM models with different process parameters are studied.The wrinkles and rupture of the draw piece can be predicted.Several methods preventing wrinkles are put forward.
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Reference：
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1 JProubet.Numericalsimulationsofwallwrinkinginfoodcandrawing.J.Mater.ProcessTechnol,1994,45,223～228
2 刘罡,林忠钦,张卫刚板料网格模型对薄板成形仿真计算结果的影响分析,塑性工程学报,2000(3)
3 BradleyNMaker,XinhaiZhu.InputParameterforMetalFormingSimulationusingLS -DYNA .LivermoreSoftwareTechnologyCorporation,April,2000.
4 LS -DYNA3DUSER SMANUAL .LivermoreSoftwareTechnologyCorporation,August1,1995
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