| 闸门水下自振频率的分析与计算 |
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| 引用本文： | 汪德爟.闸门水下自振频率的分析与计算[J].河海大学学报(自然科学版),1987(3). |
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| 作者姓名： | 汪德爟 |
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| 作者单位： | 河海大学工程力学系 |
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| 摘 要： | 本文根据闸门在水体中振动的特性,对闸门振动时所受的随动水体的附加质量力和粘性阻尼力进行了分析.由于闸门动力特性与闸门本身的结构特性,支座方式,起吊机构的特性,在闸门槽中的紧固程度及闸门面板的水平倾角等有关,在计算闸门水上,水下的自振频率时,视县体情况分别将门体简化成刚性体或平面(空间)弹性刚架.根据上述原理、编制了相应程序.实例计算表明,附加质量力对水下闸门的自振频率有明显的影响.
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| 关 键 词： | 流动激振 共振频率 附加质量 阻尼力 刚架 边界元法 |
Computation of Resonance Frequency of Hydraulic Gates |
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| Wang Deguan.Computation of Resonance Frequency of Hydraulic Gates[J].Journal of Hohai University (Natural Sciences ),1987(3). |
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| Authors: | Wang Deguan |
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| Institution: | Wang Deguan |
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| Abstract: | This paper deals with the calculation of resonance frequency of plane gate and radial gate in air or under water. Gate is schematized as a plane or spacial rigid frame, according to the structurae features, installation conditions, etc. The inertial force caused by added mass on the submerged gate is computed with the boundary element method. Results illustrate that the effect of inertial force is substantial. |
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| Keywords: | flow vibration resonant frequency added mass damping force rigid frame boundary element method |
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