一种新型潜艇前置导叶螺旋桨的开发和试验研究

潜艇前置导叶螺旋桨是CSSRC为提高潜艇快速性和降低螺旋桨噪声而开发的一种新装置。它由螺旋桨和安装在尾附体与螺旋桨之间一适当位置上的导叶组成。利用尾附体、主艇体和导叶间的相互作用来调节螺旋桨的来流，使螺旋桨的能量损失、不定常力和辐射噪声减小。本研究表明，这种新装置可以提高潜艇最大航速0.3～0.5节，降低螺旋桨辐射噪声2～4分贝。

Development and Experimental Study of a New Submarine Guide Vane Propeller System

Submarine Guide Vane Propeller is a new device developed by CSSRC to improve powering perfor mance and reduce propeller-radiated noise of submarine. It is composed of propeller and guide vane, the latter is installed at an appropriate position between stem appendages and propeller. By interactions among stem appendages, main hull and the guide vane, the inflow of propeller is adjusted, so that the energy losses in propeller and the unsteady forces and radiated noise can be reduced. In our research it is shown that the new device can increase submarine maximum speed by 0.3 ～ 0.5 knots and reduce propeller radiated noise by 2 ～ 4 dB.