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中文摘要：
本文运用刚体运动学原理及集中质量方法，建立了单体和双体深水网箱在波浪作用下的数学模型，并利用物理模型试验结果对数学模型进行验证。在此基础上，比较了单体网箱和双体网箱的水动力特性。由数值模拟结果可知，在相同波况条件下，双体网箱各类锚绳受力特征值均大于单体网箱对应工况各类锚绳的受力特征值，考虑双体网箱锚绳受力增加情况，其中锚碇锚绳受力平均增幅为65％，连接锚绳受力平均增幅为262．2％，网格锚绳受力平均增幅为95．6％；双体网箱浮架中心点的水平方向运动幅度总体上小于单体网箱对应情况，两种形式网箱的浮架中心点竖直方向运动幅度和倾角大小几乎相等，而两类网箱的网衣体积损失率总体上比较相近。
英文摘要：
Based on rigid kinematics theory and lumped mass method, the mathematical models of the single net cage and the double cages under waves are developed. In order to verify the mathematical models, a series of physical model tests have been carried out. According to the comparisons between simulated and experimental results, it can be seen that our mathematical models have better reliability and accuracy. Then the hydrodynamic characteristic of the single cage and that of the double cages are compared. The results show that the mooring forces of double cages are always larger than those of the single cage under the same wave condition. Taking the average increase of the force for example, the increase of the main rope, the bridle rope and the grid rope is 65%, 262.2% and 95.6%, respectively. When it comes to the movement of the central point of the float collar of the cage, in general, the motion amplitude of the double cages is less than the single cage in horizontal direction, while the amplitude in vertical direction and the inclination angle of the two types of cage are almost the same, and their volume loss factors are close to each other as a whole.
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