作　　者： ; ; (蔡旭龙）;

机构地区： 华南理工大学土木与交通学院

出　　处： 《造船技术》 2016年第4期34-41,共8页

摘　　要： 基于能量统计原理,运用VA-ONE软件对多噪声源作用下的生活舱室进行噪声预报,分析它们在不同噪声源影响下的噪声特性,可知在远离主机的生活舱室,主机结构振动噪声为其主要诱因。然后根据计算所得到的声压级图分别计算了三种不同吸声材料及其组合的吸声效果,发现根据不同频段的噪声选取合适的吸声材料,吸声效果会更好。 Based on the principle of energy statistics,using VA-ONE to make the prediction of target cabins under multiple excitations,and analyze their own noise characteristics in order to achieve the detail sound pressure level.By conclusion,the target cabins far from the main engine are mainly infected by structure-borne noise.Then chose three kinds of suitable acoustic materials and a group of the three referring to the sound pressure level to compare the different results.These analysis could provide that the right acoustic materials chosen according to different frequency,the sound absorption will be better.

关 键 词： 多激励源 能量统计原理 噪声预报 吸声

领　　域： [交通运输工程] [交通运输工程]