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对双层壳体（壳间充满流体的同轴圆柱壳）的声辐射进行了研究．基于Ｆｌüｇｇｅ壳体理论和Ｈｅｌｍｈｏｌｔｚ波动方程计算了有限长双层壳体在径向点激励下的声功率和振动速度级，讨论了双层壳体固有振动特性，比较了双层壳体与单层壳体声辐射特性．
The acoustic radiation of a double shell (a fluid filled coaxial cylindrical shell between shells) was investigated. Based on the Flügge shell theory and the Helmholtz wave equation, the acoustic power and vibration velocity of a finite double-shell shell under radial excitation were calculated. The natural vibration characteristics of the double shell were discussed. Shell sound radiation characteristics.