航空学报 > 1994, Vol. 15 Issue (9): 1085-1090

层合板稳定性分析的微分求积法

游仁长, 玉永亮, 王鑫伟   

  1. 南京航空航天大学104教研室,南京,210016
  • 收稿日期:1993-08-30 修回日期:1993-12-20 出版日期:1994-09-25 发布日期:1994-09-25

DIFFERENTIAL QUADRATURE METHOD IN THE BUCKLING ANALYSIS OF COMPOSITE LAMINATED PLATES

You Renchang, Wang Yongliang, Wang Xinwei   

  1. FacuLty 104,Nanjing University of Aeronautics and Astronautics,Nanjing,210016
  • Received:1993-08-30 Revised:1993-12-20 Online:1994-09-25 Published:1994-09-25

摘要: 用微分求积法分析层合板的稳定性时,离散节点的选取是计算能否成功的关键。给出了两种节点坐标的计算公式,通过对多种情况的计算,比较了各种节点分布形式所得结果的收敛性及准确性。结果表明,节点离散规律,可得到令人满意的结果。

关键词: 微分方程, 层压板, 屈曲

Abstract: The grid spacing plays an important role in the buckling analysis of composite laminated plates by the Differential Quadrature (DQ) method. Two formulae are proposed to compute the grid spacing and the convergence of the DQ method is then investigated.It is found that the DQ methOd with the proposed grid spacings gives satisfactory resuIts for vari-ous benchmark problems considered in this paper.

Key words: differential equations, laminates, buckling

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