| 引用本文: | 周科健.装液回转壳体的固有频率和振型的计算.[J].国防科技大学学报,1982,(1):29-35.[点击复制] |
| Zhou Kejian.A Computation for the Natural Frequencies and Mode Shapes of Revolutionary SheI1s Having Liquid[J].Journal of National University of Defense Technology,1982,(1):29-35[点击复制] |
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| 装液回转壳体的固有频率和振型的计算 |
| 周科健 |
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| 摘要: |
| 用有限单元法计算液体和壳体的相互耦合振动问题。当自由液面压力p=0时，相当于在壳体运动方程中附加一扇量矩阵 [Ma]，反映壳体和液体的耦合影响。考虑这一影响后，壳体的固有频率有很大降低.而低阶振型几乎不变。 |
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| 投稿日期：1981-11-02 |
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| A Computation for the Natural Frequencies and Mode Shapes of Revolutionary SheI1s Having Liquid |
| Zhou Kejian |
| Abstract: |
| A finite element method is used for computing liquid-shell interaction vibration problem. When the pressure on the free surface have p=0，this is equivalent to add an additional mass matrix [Ma] in the governing equation for the shell，which represents the effect of the coupling of liquid and shell. After having been taken account of this effect，the natural frequencies of shell descend very larger1y，whi1e the fundamental mode shapes vary less. |
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