CAJ | 학술논문

利用VA One软件对某三体船进行舱室噪声预报与控制方法研究。首先对船体进行简化建立整船模型，并对模型施加外部激励，预报各舱室的噪声水平。再应用VA One软件对不同吸声材料的吸声性能进行模拟计算，考察声腔子系统的能量输入关系。根据能量贡献量的大小混合使用不同吸声材料对指定舱室进行噪声控制处理，得到了较好的降噪效果。
이용VA One연건대모삼체선진행창실조성예보여공제방법연구。수선대선체진행간화건립정선모형，병대모형시가외부격려，예보각창실적조성수평。재응용VA One연건대불동흡성재료적흡성성능진행모의계산，고찰성강자계통적능량수입관계。근거능량공헌량적대소혼합사용불동흡성재료대지정창실진행조성공제처리，득도료교호적강조효과。
Based on statistical energy analysis, and using VA One software, the cabin’s noise of a three-hulled ship is predicted and the noise control methods are investigated. Fist of all, the SEA model of the ship is built and the external excitation to the model is enforced to predict the noise levels of several cabins. Then, the sound abatement performances of different sound- absorption materials are investigated. Finally, through the investigation of relationship of energy transmission of the acoustic cavity subsystems, the noise control is performed by considering the energy contributions using hybrid sound-absorption materials and good noise abatement is obtained.