Some Characteristics of the Flexural Vibrations of Orthogonally Stiffened Cylindrical Shells
Some Characteristics of the Flexural Vibrations of Orthogonally Stiffened Cylindrical Shells
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DOI：
10.1121/1.1909392
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发表时间：
1958
影响因子：
2.4
通讯作者：
W. Hoppmann
中科院分区：
文献类型：
--
作者：
W. Hoppmann
本文介绍了正交加筋圆柱壳壁面弯曲振动问题的理论研究。给出了加筋壳体的频率方程。此外，还描述了验证理论的实验方法。表中给出了各向同性以及两种不同正交加筋壳体设计的实验确定频率。实验和相应的理论结果进行了讨论。Arnold和Warburton在均匀各向同性壳体的频谱中发现了一个特殊的凹陷，这种凹陷在理论上被证明存在，并在加筋壳体中得到了实验验证。此外，有被证明是一个偏见的振动模式的兴奋性实验确定。对这种现象的原因进行了讨论。对于所研究的壳体，刚度主轴在纵向和横向上。在一种情况下，最大刚度的轴是在...
The paper presents a resume of a theoretical study of the problem of flexural vibrations of the walls of orthogonally stiffened cylindrical shells. Frequency equations are given for the stiffened shells. In addition an experimental method of verifying the theory is described. Experimentally determined frequencies for an isotropic as well as two different designs of orthogonally stiffened shells are given in tables. The experimental and corresponding theoretical results are discussed. A peculiar dip in the frequency spectrum which was discovered by Arnold and Warburton for uniform isotropic shells is shown to exist theoretically and verified experimentally for stiffened shells. In addition, there is shown to be a bias in the excitability of the modes of vibration as determined experimentally. The reason for this phenomenon is discussed. The principal axes of stiffness are in the longitudinal and transverse directions for the shells under study. In one case the axis of maximum stiffness is in the longitudin...