双曲率飞机整体壁板压弯成形有限元建模

来源 :2012 Postdoctoral Symposium of China on Materials Science & | 被引量 : 0次 | 上传用户:amwygah021121
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  为了建立压弯成形工艺的有限元模型,提出一种特殊的模拟过程和一种基于压弯线坐标的上下模边界条件计算方法。实现了双曲率飞机整体壁板七道次压弯成形工艺的模拟并且可以较好地模拟真实的生产过程,本建模方法可用于此复杂成形工艺的研究。分析了应力和应变分布,揭示了成形工艺的变形机理。通过进行定量的比较,得知七道次压弯成形的成形精度和表面质量较好。
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