小型民用船舶柴油发电机组箱装体设计技术及应用

Design Technology and Application of the Diesel Generator Set Acoustic Inclosure for Small Civil Ship

以小型民用船舶箱装体的设计和应用为研究对象,借助CAD和CAE等设计手段,通过合理确定减振减噪的具体指标及设计技术,成功设计出符合小型民用船舶发电机组减振减噪需求的箱装体。实际应用显示:所设计的箱装体隔振效果达53 d B,隔声效果为26 d B(A),达到设计要求。该设计技术为后续小型、低噪声、豪华民用船舶设计提供了技术支撑。

Taking the design and application of small civil ship＇ s acoustic inlosure of as the research ob- ject, with the use of CAD and CAE software, the diesel generator set acoustic inclosure which meets the demand of small civil ship＇ s vibration and noise reduction was developed through reasonable confirmation of specific indexes and design techniques. Actual application show that the inclosure could reduce vibra- tion by 53 dB, and noise by 26 dB （ A）, thus meet the design requirements. The design techniques provide technical basis for the follow up design of small low-noise and luxury civil ships.