水动力噪声 meaning in English
hydrodynamic noise
Examples
- The self - - noise of underwater vehicles is one of the main interfere sources in sonar , which is compound of three kinds of noise inc1uding the machinery noise , the propel ler noi se and the water ki net ics noise
航行体自噪声是声纳的主要干扰源之一，它由航行体运动时产生的机械噪声、螺旋桨噪声和水动力噪声几部分构成。 - The submarine noise detected by sonar consists of two parts : propeller - generated hydro - dynamical noise , which can be greatly reduced by improving the submarine rear shape ; radiated noise from the submarine structure excited by the centrifugal forces ( moments ) of rotatory machine , which is more complicated and influenced by many factors
声纳所探测的潜艇噪声包括两部分，一是螺旋桨运转带来的水动力噪声，二是潜艇主机工作时产生的不平衡力和力矩引起潜艇结构振动，带动流场振动从而辐射噪声。通过改进潜艇尾部线型设计，已将水动力噪声降到比较低的程度，而结构噪声则复杂得多，与许多因素有关。