摘要
针对某舰壳声纳和导流罩,运用有限元分析计算软件和声学分析软件,对缩比1:4模型罩建立了在内部声源定向发射时辐射声场的计算模型,计算了某频率下声源定向发射时的声场指向性。与在消声水池中所做1:4模型罩的相关试验结果进行了比较,说明所建立的计算模型是合理的。计算结果表明了舰壳声纳的远场声特性良好。
Built the calculating model of the sound radiation of hull sonar and its fairing with a scale of 1 : 4 by using FEM software ANSYS and BEM software. The direction chart is calculated when a-coustics source launches to definite direction. By comparing the results using the present method and model with those using test method, it is found that the calculating model and method are reasonable. The calculated results show that the far sound characteristic of hull sonar and its fairing are good.
出处
《华东船舶工业学院学报》
2003年第5期6-10,共5页
Journal of East China Shipbuilding Institute(Natural Science Edition)
基金
上海交通大学振动冲击噪声国家重点实验室开放基金(VSN-2002-05)
关键词
舰壳声纳
导流罩
声辐射
声场特性
hull sonar
fairing
sound radiation
sound characteristic
