结构与内流体相互作用问题的半解析方法

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A Semi-Analytical Method for Structure-Internal Liquid Interaction Problems

摘要: 本文探讨一种结构-内流体组合单元,沿流体两个正交方向取用解析函数族,将结构与内流体耦联振动的三维问题化为一维问题求解,致使计算工作量大为减少.为适合各种不同类型问题,文中建立了柱形与钳形组合单元,给出了算例,讨论了方法的精度.

Abstract: A composite structure-internal liquid element is proposed in this paper. Through the use of analytical functions in two orthogonal directions. the three-dimensional problem of coupled structure-internal liquid vibration is reduced to a one-dimensional one, resulting in a drastic reduction in computing efforts.Cylindrical and conical frusium composite elemenls are proposed lo suit different problems, and examples are presenled to demonsirate the accuraey of the method.

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