中文摘要：

以结构-声耦合振动系统中的互易原理为基础，通过水下互易实验分析了双层圆柱壳体结构中力-声传递函数反向测量与正向测量之间的差异。通过不同声源激励功率下的对比试验，以及声源扫频和单频激励模式下的对比实验，排除了实验中激励功率及激励模式对实验结果的影响。结果表明：通过实验获取的修正系数可以有效减小不同模型及声源深度组合条件下正、反向测量结果之间的差异。

英文摘要：

Based on the reciprocity principle used in the mechano-acoustical system , the reciprocity charateristics of the double-shell cylindrical structure are analyzed by underwater experiments .And comparative experiments are performed with different sound powers and driving modes to eliminate the erroneous sources .The difference between the direct and reciprocal measurement results in diffe-rent depth conditions can be effectively reduced by use of the corrected factor .