摘要
小水线面双体船型尾部结构与常规单体船相差较大,开展小水线面双体船螺旋桨脉动压力激励尾部结构引起的水下辐射噪声特性研究及结构优化分析对于全船水下辐射噪声的控制具有重要作用。研究结果表明:双桨脉动压力相位差对于各阶脉动压力分量引起的水下辐射噪声都有显著影响,且大部分阶数对应的水下辐射噪声极小值出现在相位差180°时;相比其他优化措施,通过增加脉动压力作用区尾部结构横向加强筋的尺寸来降低各阶脉动压力分量引起的水下辐射噪声具有较高的效费比。
The stern structure of SWATH ship has great difference from normal single hull ship, thus to analyze the characteristics of underwater noise induced by propeller pulse pressure exciting the stern structure and to optimize the stern structure are important for controlling the underwater noise of ship. The results show that, the phase difference of the two propellers has great influence on the underwater noise induced by each order of pulse pressure components, and the minimal values of underwater noise corresponding to most orders appear when the phase difference is 180°. Compared to other optimization measures, to increase the size of crosswise ribs in the area with pulse pressure exciting will have higher cost-effectiveness to reduce the underwater noise induced by each order of pulse pressure components.
作者
朱东华
ZHU Dong-hua(Warship Bureau of Naval Equipment Department, Beijing 100841, China)
出处
《舰船科学技术》
北大核心
2018年第12期44-48,共5页
Ship Science and Technology
