复杂锥柱结构中频水下声辐射特性研究

验证了基于波动理论的FE-SEA混合法计算复杂结构中频水下声辐射的可行性,对复杂锥柱结构的中频水下声辐射特性进行了研究,讨论了载荷作用位置及内外壳板厚对其声辐射的影响,研究表明载荷作用于内壳时,其辐射声压最小;增大内壳厚度相比于增大外壳厚度能更有效的减小圆柱壳声辐射.

The characteristic of mid-frequency underwater sound radiation of complex pyramid structure

The feasibility of underwater sound radiation of complex structure calculated by FE-SEA hybrid method which is based on wave theory is validated.The characteristic of underwater sound radiation of complex pyramid structure is researched.And the effect of load position and shell depth to the sound radiation is discussed.The result shows that: the value is minimum while the load laid on the inner shell,and it is more effectively to reduced the sound radiation of cylindrical shell for increasing inner shell thickness compared to increasing outer shell thickness.