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本文对圆柱贮箱中液体的晃动问题进行了精细研究，提出了模部及模部分析的新概念。在此基础上，文章研究了在不同接触角假设下的模部正交性问题，对传统的圆柱贮箱中液体的受迫晃动理论作了本质分析，并从速度势函数ｚ模部的角度分析了深箱问题的实质。
In this paper, the problem of sloshing of liquid in a cylindrical tank has been studied carefully, and a new concept of mold part and mold part analysis has been put forward. On this basis, the article studies the orthogonality of the die under different assumptions of contact angle, and analyzes the theory of the forced shaking of the liquid in the traditional cylindrical tank. From the point of view of the velocity potential function Analyzed the essence of the problem of deep box.