按位移推导平面轴对称问题的一般性解答

General solutions of planar axisymmetrical problem by displacement method

  • 摘要: 根据平面轴对称问题的物理概念, 将平面轴对称问题分为轴对称应力问题和轴对称位移问题, 给出了这两种轴对称问题的基本方程, 并指出平面轴对称位移问题是平面轴对称应力问题的特例. 在此基础上, 分别按位移推导了平面轴对称应力问题和平面轴对称位移问题的一般性解答. 按位移推导平面轴对称问题, 可以考虑体力分量, 从而可避免按应力函数推导平面轴对称应力问题时不能考虑体力分量的局限性.

     

    Abstract: According to the basic concept of the axisymmetry, the planar axisymmetry problems can be classified as the axisymmetrical stress and the axisymmetrical displacement, and their basic equations are given, respectively. It should be noted that the planar axisymmetrical displacement is a special case of the planar axisymmetrical stress. The general solutions of the planar axisymmetrical stress and the planar axisymmetrical displacement are obtained by displacement method, respectively. The results indicate that the general body force can be considered when solution of planar axisymmetry problem in terms of displacement.

     

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