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首页> 外文会议>SSTA(Shell Structures: Theory and Applications) Conference; 20051012-14; Jurata(PL) >Dynamic stability of a cylindrical shell contacting with an anisotropic medium
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Dynamic stability of a cylindrical shell contacting with an anisotropic medium

机译：圆柱壳与各向异性介质接触的动态稳定性

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摘要

The problem of dynamic stability of an elastic cylindrical shell, whose internal side is suddenly subjected to radial velocities but its external side is in welded contact with an elastic curvilinearly anisotropic medium, is considered. Besides, the shell is under uniform axial pressure. Transient excitation of the shell gives rise to three types of cylindrical shock waves in the contacting elastic transversely isotropic medium. The solution behind the contact boundary is constructed by the ray method. It has been shown that the behaviour of the shell's radial displacement in time is dependent on the level of axial pressure: under the axial pressure in excess of the critical value, the normal displacements of some set of points belonging to the shell may increase significantly in a short time.
机译：考虑了弹性圆柱壳的动态稳定性问题，该圆柱壳的内侧突然受到径向速度的作用，但其外侧与弹性的曲线各向异性介质焊接接触。此外，壳体承受均匀的轴向压力。壳体的瞬态激发在接触的弹性横向各向同性介质中产生三种类型的圆柱激波。接触边界后面的解决方案是通过射线方法构造的。结果表明，壳体的径向位移随时间的变化取决于轴向压力的水平：在轴向压力超过临界值的情况下，属于壳体的某些点的法向位移可能会显着增加。短时间。

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