一种舰船辐射噪声场水平分布特性分析方法

舰船水下辐射噪声特性及其空间分布特性直接关系着以被动工作方式工作的武器装备的作战能力和生存能力,因此对舰船辐射噪声场分布特性的研究具有重大的现实意义。通过对舰船辐射噪声场的深入分析,提出了一种辐射噪声场的水平分布特性分析方法,即利用总声级的通过特性研究声压级与不同距离的关系,基于声压级等高面图的方法,找出声压级相同点的分布规律。仿真计算和海上试验数据处理的结果验证了方法的有效性。

An analytical procedure for horizontal distribute characteristic of ships radiated noise field

The operational and survival ability of passive mode weapons is related to the spatial distribute characteristic of ship's radiated noise. So the research of the distribute characteristic of ship's radiated noise is necessary and important. An analytical procedure for horizontal distribute characteristic of ship's radiated noise field was proposed through the analysis of ship's radiated noise field. The method is that researching the relationship of sound pressure level and distance with the total sound level' s through signature based on equal pressure contours. The regularities of distribution of sound press level were presented. Computer simulation was performed and test data was analyzed. It is shown that the method is effective.