【摘要】 基于壳体水弹性理论，探讨了潜水器动力舱振动与声辐射建模及分析方法，并对常用潜水器动力舱振动和声辐射进行了分析．结果表明，该舱振动复杂，模态密度大，难于避开动力源工作频率；其频率响应峰值集中在中低频段，响应大小与激振频率和激振方向有关；阻尼对频率响应影响较大，敷设阻尼材料降噪效果显著．更多还原

【Abstract】 The model of vibration and sound radiation of submarine dynamic cabin and its analysis method are discussed with the help of the hydroelasticity theory of shells. The structure finite element and fluid boundary elements are used to analyze the vibration and sound radiation of common submarine dynamic cabin. The result shows that the vibration is complex, and the density of mode shape is large, thus being impossible to avoid from the work frequency of dynamic source. The peak value of frequency response is concentrate on midband and lowband. The response value has a relationship to excitation frequency and excitation direction. The damp influences on the frequency greatly. Using the damp material to reduce noise is very effective.更多还原