统计能量法在船舶舱室噪声预报中的应用

详细介绍了统计能量法并结合某船模型以统计能量法进行舱室噪声预报及改进设计研究。在某段舱室内分别以加减震器与不加减震器2种工况下噪声的计算结果与统计能量法得出的计算结果进行分析对比,充分验证了统计能量法的预报可行性,得出结论:统计能量分析法可以有效地预报船舶舱室的高频噪声,可以对局部设计的更改和局部减震装置的施加进行有效的仿真,适用设计阶段船舶舱室噪声的预报和结构声学优化计算。本文所得数据也可为今后船舶设计开发提供相关参考依据。

Prediction and research of ship cabin noise with statistical energy analysis

This paper introduces the statistical energy analysis method,combining with a ship model with statistical energy method for cabin noise forecast and improvement design study,in a cabin respectively to add shock absorber and without shock absorber under two working conditions of noise in computed results with statistical energy analysis method the calculated results were analyzed and compared,fully validated.Statistical energy analysis method in the prediction of feasibility,drawing the conclusion:the statistical energy analysis method can effectively forecast the cabin noise of high frequency.It can be to the local design changes and local damping deviceing exerts effective simulation,applicable design stage on deckhouse noise prediction and structural acoustic optimization.The data are also available for future development to provide reference for ship design.