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整体次加筋壁板屈曲载荷近似计算方法

徐元铭 李松泽

徐元铭, 李松泽. 整体次加筋壁板屈曲载荷近似计算方法[J]. 北京航空航天大学学报, 2015, 41(3): 369-374. doi: 10.13700/j.bh.1001-5965.2014.0240
引用本文: 徐元铭, 李松泽. 整体次加筋壁板屈曲载荷近似计算方法[J]. 北京航空航天大学学报, 2015, 41(3): 369-374. doi: 10.13700/j.bh.1001-5965.2014.0240
XU Yuanming, LI Songze. Approximate calculation method of buckling load on integral sub-stiffened panel[J]. Journal of Beijing University of Aeronautics and Astronautics, 2015, 41(3): 369-374. doi: 10.13700/j.bh.1001-5965.2014.0240(in Chinese)
Citation: XU Yuanming, LI Songze. Approximate calculation method of buckling load on integral sub-stiffened panel[J]. Journal of Beijing University of Aeronautics and Astronautics, 2015, 41(3): 369-374. doi: 10.13700/j.bh.1001-5965.2014.0240(in Chinese)

整体次加筋壁板屈曲载荷近似计算方法

doi: 10.13700/j.bh.1001-5965.2014.0240
详细信息
    通讯作者:

    徐元铭(1965-),男,江苏武进人,教授,xuymg@sina.com,主要研究方向为飞行器结构设计、结构优化、神经网络专家系统.

  • 中图分类号: V214.4

Approximate calculation method of buckling load on integral sub-stiffened panel

  • 摘要: 为了在初步设计阶段能够快速计算整体次加筋板的失稳载荷,在一些合理假设的基础上,提出了一种简单的近似计算方法.以无缺陷的四边简支的矩形次加筋板为研究对象,针对该结构的3种失稳形式,利用传统加筋板理论分别计算相应的屈曲载荷,并以3种失稳形式中最小的临界屈曲载荷作为整体次加筋板的近似屈曲载荷.应用ABAQUS软件的屈曲线性摄动步方法分别计算了两组有限元模型:一组用来验证3种失效形式理论公式计算的准确度;另一组是整体次加筋板有限元模型,用以验证所提出的次加筋板屈曲载荷计算方法的适用性.以上研究均考虑了纵向压缩载荷和压剪组合载荷两种工况.计算结果表明,理论近似计算方法能够准确地计算次加筋板的失稳载荷,有一定的工程应用价值.

     

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出版历程
  • 收稿日期:  2014-04-30
  • 刊出日期:  2015-03-20

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