多桨船双臂支架空泡性能优化及其对螺旋桨空泡性能影响研究  

Cavitation Optimization of V-Bracket and Its Infuence on Cavitation Performance of Propellers for Multi-Propulsor Ship

作　　者：黄红波[1,2] 许晖 王建芳[1] 丁恩宝[1,2] 刘登成[1,2] 

机构地区：[1]中国船舶科学研究中心船舶振动噪声重点实验室,无锡214082 [2]江苏省绿色船舶技术重点实验室,无锡214082 [3]中国舰船设计研究中心,武汉4300064

出　　处：《中国造船》2015年第2期150-158,共9页Shipbuilding of China

摘　　要：水面多桨船舶在高速航行时,其双臂支架极易产生较强的不稳定的片状空泡,此空泡不仅会增加支架空泡剥蚀的风险,还会因为支架空泡的存在,加大伴流的不均匀性,从而增加螺旋桨叶片上空泡的不稳定性。本文采用新型双臂支架设计、加工、装配方法,在大型循环水槽内利用全附体船舶模型进行了双臂支架空泡性能优化的系列试验。试验结果表明,支架空泡性能对其角度的变化极为敏感,合适的支架角度不仅能显著改善支架本身的空泡性能,亦可改善螺旋桨叶片上的空泡特性。Unsteady cavity often exists on the surface of V-bracket of high-speed multi-propulsor ship, which will cause V-bracket cavitation erosion on and affect the cavitations and hydrodynamic performance of propeller. This paper presented the test method and results of V-brackets cavitations performance optimization with a whole ship model and propeller models in the large cavitations channel. The test results indicated that the V-bracket with appropriate attack angle would observably improve the cavitations performance of V-bracket and propellers.

关 键 词：双臂支架 空泡 

分 类 号：U661.12[交通运输工程—船舶及航道工程]