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圆锥形壳体的固有振动特性

THE VIBRATION BEHAVIOURS OF THE CIRCULAR CONICAL SHELLS

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【作者】 唐照千洪钟瑜

【Author】 TANG CHAO-TSIEN HONG ZHONG-YU(Sian Chiao-tong University)

【机构】 西安交通大学西安交通大学

【摘要】 本文报导了20个不同结构形式和尺寸的圆锥壳试件的振动实验结果,包括固有频率测定数据和沿母线方向振动型式以及节线分布的测量结果,同时也探讨了实验方法.实验结果证实了圆锥壳振动型式与锥角及周向波数有关的推断,这一特性应作为运用直接法计算时选取振型函数的参考.文中给出了按Ritz法和分解法计算的结果,与突验数据作了比较和讨论.同时还给出了按分解法计算任意封顶锥壳的曲线图表,以利工程设计计算应用.

【Abstract】 Experimental methods and results of the vibrations of twenty conical shell specimens with various geometry and dimensions are presented and discussed. The vibration mode measured in these experiments indicates that it varies with the conical angle and the circumferential wave number. Such phenomenon must be considered in choosing the admissible mode functions when the direct methods are used for calculations of eigen-frcquencies. Numerical results computated by the decomposition method and the Ritz method are given and compared quantitatively with the data of experiments. Curves for calculating the eigenfrequencies of arbitrary complete conical shells by the decomposition method are presented for engineering application.

  • 【文献出处】 力学学报 ,Acta Mechanica Sinica , 编辑部邮箱 ,1966年01期
  • 【被引频次】5
  • 【下载频次】207
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