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首页> 外文期刊>Ocean Engineering >Frequency-bounds of sloshing wave systems in a square-base liquid tank
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Frequency-bounds of sloshing wave systems in a square-base liquid tank

机译：方碱罐中晃动波系统的频率界

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Liquid sloshing in square or nearly square-base tanks becomes more complex due to the emergence of three dimensional waves around resonance. Because of symmetrical base in a square tank, two predominant sloshing modes (along the plane of excitation and orthogonal to the excitation plane), simultaneously emerge even if the tank is resonantly excited in one direction. For relatively small liquid-depth, nonlinear effects shift the resonant sloshing frequency. So, the effectiveness of devices (Tuned Liquid Dampers) designed based on the linear theory will be affected. The present study investigates the existence of the sloshing wave systems and their frequency bounds with an extensive experimental data. The tank is subjected to horizontal harmonic excitation for a wide range of frequencies and amplitudes. Sloshing induces different wave systems which depend on excitation frequency, excitation amplitude and liquid-depth. The main focus is to determine the frequency bound of swirling waves for a range of excitation amplitudes and liquid-depths. It has been found that the frequency bound of swirling increases with excitation amplitude.
机译：由于谐振周围的三维波的出现，方形或几乎平方槽中的液体晃动变得更加复杂。由于方形罐中的对称底座，即使罐在一个方向上谐振激励，也可以同时出现两个主要的晃动模式（沿着激发平面和激发平面）。对于相对较小的液体深度，非线性效应使谐振晃动频率变化。因此，基于线性理论设计的设备（调谐液体阻尼器）的有效性将受到影响。本研究研究了晃动波系统的存在及其频率界限，具有广泛的实验数据。对坦克进行水平谐波激发，用于各种频率和幅度。晃动诱导不同的波系统，取决于励磁频率，激励幅度和液体深度。主要焦点是确定一系列激发幅度和液体深度旋转波的频率。已经发现，旋转的频率随着激励幅度而增加。

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