【摘要】 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．更多还原

【Abstract】 The sound radiation of a submerged finite double shell (two concentric cylindrical shells with the entrained fluid) is studied. Based on Flügge shell theory and Helmholtz equation, the sound power is calculated for the finite double shell driven radially by a point force. The natural vibration characteristics of the double shell are discussed. The comparison of sound radiation between single and double shells is made.更多还原