整体壁板压弯成形等效计算模型

李卫东; 万敏

doi:10.13700/j.bh.1001-5965.2013.0726

整体壁板压弯成形等效计算模型

doi: 10.13700/j.bh.1001-5965.2013.0726

李卫东,
万敏

北京航空航天大学机械工程及自动化学院, 北京 100191

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
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- 被引次数: 0
出版历程
- 收稿日期: 2013-12-30
- 网络出版日期: 2014-11-20

Press bending equivalent simulation model of integrally reinforced panel

Li Weidong,
Wan Min

School of Mechanical Engineering and Automation, Beijing University of Aeronautics and Astronautics, Beijing 100191, China

摘要

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.
- 整体壁板 /
- 压弯成形 /
- 等效模型 /
- 虚拟材料 /
- 有限元分析
Abstract: The elastic and plastic deformation distribution of skin and stiffener were analyzed during press bending for integrally reinforced panel with inside ribs. According to the characteristics of plastic deformation on inside stiffener and mainly elastic deformation on skin, a geometrical equivalent method was proposed which simplified the skin component to stiffener with virtual material properties. The calculative formula of equivalent coefficient was educed based on inertia moment. For complicated integrally reinforced panel, the establishment process and calculative method of equivalent model were also introduced. The finite element analysis and experiment of Ⅰ -style single stiffener and gridding stiffener panels were carried out. The comparisons on efficient and precision between detailed model and equivalent model were made and verified by experimental data. The equivalent model for press bending was proved to be reliable and highly efficient which can be used for simulation and parameter optimization of large complicated gridding integrally reinforced panel.
- integrally reinforced panel /
- press bend forming /
- equivalent model /
- virtual material /
- finite element analysis

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参考文献(15)

[1]	曾元松,黄遐.大型整体壁板成形技术[J].航空学报,2008,29(3):721-727 Zeng Yuansong,Huang Xia.Forming technologies of large integral panel[J].Acta Aeronautica et Astronautica Sinica,2008,29(3):721-727(in Chinese)
[2]	Munroe J,Wilkins K,Gruber M.Integral airframe structures(IAS)-validated feasibility study of integrally stiffened metallic fuselage panels for reducing manufacturing costs[R].NASA/CR-2000-209337,2000
[3]	Huber M T.The elastic theory of an orthotropic plate [M].Macmillan:Timoshenko 60th Anniversary Volume,1938:89-92
[4]	Troistsky M S.Stiffened plates bending,stability and vibrations [M].Amsterdam:Elsevier Scientific Publishing Company,1976:62-113
[5]	Bradley K R.A sizing methodology for the conceptual design of blended-wing-body transports [R].NASA/CR-2004-213016,2004
[6]	Machimdamrong C,Watanabe E,Utsunomiya T.Shear buckling of corrugated plates with edges elastically restrained against rotation[J].International Journal of Structural Stability and Dynamics,2004,4(1):89-104
[7]	赵金森.铝蜂窝夹层板的力学性能等效模型研究[D].南京:南京航空航天大学,2006 Zhao Jinsen.Research on equivalent models of the mechanical function for aluminum honeycomb sandwich panel [D].Nanjing:Nanjing University of Aeronautics and Astronautics,2006(in Chinese)
[8]	Peng L X,Liew K M,Kitipornchai S.Analysis of stiffened corrugated plates based on the FSDT via the mesh-free method [J].International Journal of Mechanical Sciences,2007,49(3):364-378
[9]	Cernescu A,Romanoff J,Remes H,et al.Equivalent mechanical properties for cylindrical cell honeycomb core structure[J].Composite Structures,2014,108(1):866-875
[10]	邢誉峰,潘忠文,杨阳.蒙皮加筋圆柱壳弯曲频率的三种计算模型[J].北京航空航天大学学报,2012,38(4):438-443 Xing Yufeng,Pan Zhongwen,Yang Yang.Three solution models of lateral frequencies of stiffening cylindrical shell[J].Journal of Beijing University of Aeronautics and Astronautics,2012,38(4):438-443(in Chinese)
[11]	Yan Y,Wan M,Wang H B.FEM equivalent model for press bend forming of aircraft integral panel[J].Transactions of Nonferrous Metals Society of China,2009,19(2):414-421
[12]	赖松柏,于登云,陈同祥.整体壁板结构弯曲成形分析的等效塑性模型[J].宇航学报,2012,33(6):809-815 Lai Songbai,Yu Dengyun,Chen Tongxiang.Plastic equivalent model for integrally stiffened panel in bending forming[J].Journal of Astronautics,2012,33(6):809-815(in Chinese)
[13]	Avi E,Niemel A,Lilleme I,et al.Equivalent shell element for ship structural design[C]//Proceedings of the 4th International Conference on Marine Structures.Leiden,Netherlands:CRC Press,2013:459-468
[14]	Neto A T,Bussamra F L C,Silva H A C.A new metamodel for reinforced panels under compressive loads and its application to the fuselage conception[J].Latin American Journal of Solids and Structures,2014,11(2):223-244
[15]	Yan Y,Wan M,Wang H B,et al.Design and optimization of press bend forming path for producing aircraft integral panels with compound curvatures[J].Chinese Journal of Aeronautics,2010,23(2):274-282