内饰板和舱壁间隙对舱室降噪的影响分析

摘要

结合船舶舱室中的噪声危害以及即将强制施行的船上噪声新的等级规则，基于IMO噪声新规则，选取实船工装内饰板和舱壁板，通过对内饰板和舱壁板不同间隙的隔声性能进行测试，研究分析不同厚度间隙对船舶舱室隔声降噪的影响。试验分析表明，各工况在中高频范围内的隔声效果较好，且随着间隔的增大隔声效果也得到提高。%In light of the noise hazards in the cabin and the new code on noise level on ship of IMO , the effects of the space between trim and bulkhead plate on noise reduction of the cabin were researched by testing the sound insulation performance of trim panel and bulkhead plate with different space .The testing results showed that the sound insulation effect is better in the me-dium-high frequency under various conditions , and the sound insulation effect is improved with the increase of the space .