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整体壁板压弯成形等效计算模型

李卫东 万敏

李卫东, 万敏. 整体壁板压弯成形等效计算模型[J]. 北京航空航天大学学报, 2014, 40(11): 1537-1542. doi: 10.13700/j.bh.1001-5965.2013.0726
引用本文: 李卫东, 万敏. 整体壁板压弯成形等效计算模型[J]. 北京航空航天大学学报, 2014, 40(11): 1537-1542. doi: 10.13700/j.bh.1001-5965.2013.0726
Li Weidong, Wan Min. Press bending equivalent simulation model of integrally reinforced panel[J]. Journal of Beijing University of Aeronautics and Astronautics, 2014, 40(11): 1537-1542. doi: 10.13700/j.bh.1001-5965.2013.0726(in Chinese)
Citation: Li Weidong, Wan Min. Press bending equivalent simulation model of integrally reinforced panel[J]. Journal of Beijing University of Aeronautics and Astronautics, 2014, 40(11): 1537-1542. doi: 10.13700/j.bh.1001-5965.2013.0726(in Chinese)

整体壁板压弯成形等效计算模型

doi: 10.13700/j.bh.1001-5965.2013.0726
基金项目: 国家自然科学基金资助项目(51005009)
详细信息
    作者简介:

    李卫东(1977-),男,四川青神人,讲师,space@buaa.edu.cn.

  • 中图分类号: V262.3+2

Press bending equivalent simulation model of integrally reinforced panel

  • 摘要: 分析了筋条内弯型整体壁板压弯成形过程中蒙皮和筋条的弹塑性变形分布,鉴于内弯筋条发生塑性变形而蒙皮主要为弹性变形的特点,提出了一种将蒙皮部分简化为虚拟材料筋条的几何等效方法.推导了基于惯性矩的虚拟材料等效系数计算公式,给出了复杂网格筋条壁板等效模型建立过程和虚拟材料系数计算方法.进行了Ⅰ型单筋条和网格筋条壁板的有限元分析和压弯实验,对比分析了完整模型和等效模型的计算效率和精度,并用实验数据进行了验证,表明建立的压弯成形有限元等效模型精度可靠、效率数倍提高,为大型整体壁板压弯成形分析和工艺参数优化提供了基础.

     

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出版历程
  • 收稿日期:  2013-12-30
  • 网络出版日期:  2014-11-20

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