舱室结构和材料属性对舱室噪声的影响分析

本文主要通过数值模拟的方法，基于统计能量法研究舱室结构和吸声材料的减噪效果。对船舶舱室结构布置及岩棉与复合材料进行研究，得出单层舱室对称紧凑布置，多分舱可有效降低噪声，整个上层建筑在设定高度后紧凑安排时噪声较低。在材料上，某些材料的吸声效果不随材料的孔隙率和厚度呈线性变化。本文的研究可为船舶噪声的控制提供一定参考和借鉴。

Analysis the influence of cabin structure and material properties on cabin noise

This paper is based on the statistical energy method to studies the noise reduction effect of cabin structure and sound absorbing materials through statistical simulation method. The research on the structural arrangement of the ship cabin, the rock wool and composite materials shows that when the single-deck cabin arranged symmetrically and compactly and having more cabins, it can effectively reduce the noise. In addition, the entire superstructure has a lower noise if it has compact arrangement after setting the height. It was also found that the sound absorption effect of some materials did not change linearly with the porosity and thickness. The results can be used as references for noise control.