【摘要】 采用结构超级元和流体元分析了流场中多锥结合壳受简谐激振力作用下的动力响应．利用广义变分原理推导流固耦合系统运动方程．用模态综合法求解系统稳态动位移和动应力．对算例进行了讨论．更多还原

【Abstract】 Joined many cone shells are widely used in the fields of aeronautical and ocean engineering and chemical engineering construction. The mechanical behavior of such shells is of great significance to the structural design. However, few papers on this subject have been found in literature. The dynamic response of a many cone shell in a fluid under the action of a harmonic excitation force is analyzed using the superelement of a structure and fluid element. The motion equation for the fluid structure interaction system is derived based on the generalized variation principle. The harmonic dynamic displacement and stress are solved with hygromodal expansion. Worked examples in engineering structures are calculated and the results are discussed.更多还原