Anisotropic degree of horizontal direction and vertical direction in the sea surfacenoise field are discussed.
论证了海面噪声场垂直与水平方向噪声的各向异性程度。
2
The results of this paper proved that it is effective to reduce the engine surfacenoise by changing the structure parameters.
结果证明，通过结构参数的改变来降低表面辐射噪声是行之有效的。
3
In this paper, the relationship between the structure vibration and the surfacenoise radiation is analyzed and deduced from the acoustic and vibrational theory.