潜艇螺旋桨空化临界航速及最小噪声操纵研究

摘要

Propeller-cavitating noise is primary noise which influents submarine' s stealthiness, and speed of sub-marine has notable impact on propeller-cavitating noise. So accurately calculating propeller-cavitating critical speeds in different depths is significant to submarine's stealthiness. Based on the lifting-surface theory, a method of calcu-lating propeller-cavitating critical speed was established, and propeller-cavitating critical speeds in different depths were calculated by simulateon with this method. The comparison of the calculating result and testing result proves that the method mentioned above is effective. Submarine manoeuvr project in low noise was researched combining tactical background and ocean entironment, and some kinds of advice and scheme was educed.%潜艇螺旋桨空化噪声是影响潜艇隐蔽性的主要噪声源之一,而速度是对潜艇螺旋桨空化噪声影响最为显著的因素,准确计算出潜艇在不同深度下的临界空化速度对提高潜艇的隐蔽性具有重要意义.为此,从螺旋桨升力面理论出发,建立了一种计算潜艇螺旋桨临界空化速度的理论方法,并仿真计算了模型潜艇螺旋桨在不同航行深度下的临界空化速度,仿真结果与实测值的比较证明了计算方法的有效性.结合战术背景对潜艇最小噪声操纵方法的研究与应用,具有重要的参考价值和指导意义.