基于响应面法的矢量水听器壳体优化设计

Optimal design of pressure vector hydrophone shell based on response surface method

随着海洋探测不断向深海迈进,大深度耐压矢量水听器成为未来发展的重要方向,矢量水听器的设计还应满足小尺寸、低密度的要求。针对耐压强度大与小尺寸、低密度之间相对矛盾的问题,本文在有限元软件中建立水听器耐压壳体三维模型,求解其内部应力分布,分析壳体的耐压失效形式,运用响应面法分析各设计变量对于目标参数的敏感度,对壳体结构尺寸进行优化,优化后的水听器密度从1.25 g/cm^(3)降低至1.03 g/cm^(3),可以满足耐20 MPa水压的工作要求,达到理想的设计效果。

With the development of ocean exploration to the deep sea,the large depth water pressure resistant vector hydrophone has become an important direction in the future.The design of vector hydrophone should also meet the requirements of small size and low density.In view of the relative contradiction between large water pressure strength and small size and low density,this paper establishes a three-dimensional model of the hydrophone pressure hull in the finite element software,solves its internal stress distribution,analyzes the pressure failure form of the hull,analyzes the sensitivity of each design variable to the target parameters by using the response surface method,and optimizes the shell structure size.After optimization,the hydrophone density is reduced from 1.25 g/cm^(3) to 1.03 g/cm^(3),It can meet the working requirements of 20 MPa water pressure and achieve the ideal design effect.