英文摘要：As the breakthrough point of vibration noise transfer path which was combined with SEA graph theory method, the acoustic sensitivity analysis of two layers flat cavity structure according to the sound dominated transmission path has been conducted which aimed to slove the ship cabin noise overweight problem in the detailed design phase. It provides noise reduction design guidance and theoretical support for the ship cabin noise reduction design. As an acoustics design example of VLCC, the sensitivity of sound dominated transmission paths was obtained which used SEA graph theory method combined with its spectrum of energy input. The best noise reduction optimization scheme was choosed according to evaluation indexes and it was successfully applied to the real ship. Results show that, the forecasting values are in good agreement with the measured values. Thus it can be seen that optimization design of ship cabin noise reduction based on SEA graph theory is feasible and guidance can be provided for optimization design of noise acoustic index quantitative.
2023,45(4): 18-24 收稿日期：2022-07-23
DOI：10.3404/j.issn.1672-7649.2023.04.004
分类号：U661.39
作者简介：苏楠(1988-),女,硕士,工程师,主要从事船舶结构设计工作
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