| 引用本文: | 周科健.截顶圆锥薄壳振动特性的计算.[J].国防科技大学学报,1982,(4):1-8.[点击复制] |
| Zhou Kejian.A Computation of the Vibration Characteristics of Conical Frustum Shell[J].Journal of National University of Defense Technology,1982,(4):1-8[点击复制] |
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| 截顶圆锥薄壳振动特性的计算 |
| 周科健 |
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| 摘要: |
| 用有限单元法计算，单元为轴对称截锥壳。法向位移函数ω和周向位移函数υ采用三次多项式，纵向位移函数u为线性多项式。其节圆自由度选取节圆上三个位移，一个转角和一个剪应变。计算结果与文献[1]、[2]和[3]作了比较。这方法和程序可以应用于计算截顶圆锥壳的振动特性。 |
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| 投稿日期：1981-10-21 |
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| A Computation of the Vibration Characteristics of Conical Frustum Shell |
| Zhou Kejian |
| Abstract: |
| The finite element method is adopted for computation of axisymmetrical conical frusta. The normal disp1acement function ω and circumferential displacement function υ are given by two cubic po1ynomials，the longitudinal displacement function u is given by linear polynomial. Nodal degrees of freedom can extract three displacements，one rotation and one shear strain on the nodal circ1e. The computed resu1ts had compared with referencies[l]，[2] and [3]. This method and computer program are applicable to find vibration characteristics of conical frustum shell. |
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