Development of Multi-Layered Floating Floor for Cabin Noise Reduction

[摘要] Recently, regulations pertaining to the noise and vibration environment of ship cabins have been strengthened. In this paper, a numerical model is developed for multi-layered floating floor to predict the structure-borne noise in ship cabins. The theoretical model consists of multi-panel structures lined with high-density mineral wool. The predicted results for structure-borne noise when multi-layered floating floor is used are compared to the measure-ments made of a mock-up. A comparison of the predicted results and the experimental one shows that the developed model could be an effective tool for predicting structure-borne noise in ship cabins.

[发布机构] Department of Naval Architecture and Ocean Engineering, Chonnam National University, San 96-1, Dunduck-dong, Yeosu, Chonnam; 550-749, Korea, Republic of^1;Department of Naval Architecture and Ocean Engineering, Seoul National University, San 56-1, Silim-dong, Kwanak-gu, Seoul; 151-742, Korea, Republic of^2;Department of Naval Architecture and Ocean Engineering, Koje College, 91, Majeon 1-gil, Geoje, Gyeongnam; 656-701, Korea, Republic of^3

[效力级别] 无线电电子学

[关键词] Developed model;Effective tool;Floating floor;Multi-layered;Noise and vibration;Panel structures;Structure-borne noise;Theoretical modeling