摘要
为了研究水中含气量对螺旋桨空泡噪声的影响,在大型循环水槽中对某一高速双桨船模型的螺旋桨模型辐射噪声进行了测试.试验中进行了同一含气量下,不同船速时螺旋桨模型的辐射噪声的测量以及给定速度下,不同含气量情况下螺旋桨模型辐射噪声测量.测试结果表明:同一含气量,模拟实船不同航速工况时,噪声的总声级随着航速增加逐步增加;模拟实船某一航速工况,水中不同含气量时,测量得到的噪声总声级随含气量的增加而下降.
Radiated noise of ship propeller model has been tested for investigating the influence of gas content in water to propeller cavitation noise. The experiment was divided into two parts. First, assuming the gas content was constant, radiation noise of propeller model had been measured during different ship velocity. Second, for a ship velocity, noise had been gained in different gas content. The resuits of experimental investigations clearly show that if keeping gas content invariable, total noise increases as ship velocity becomes big; if ship velocity is a constant, total noise decreases while gas content in water Increases.
出处
《武汉理工大学学报（交通科学与工程版）》
2009年第2期234-237,共4页
Journal of Wuhan University of Technology（Transportation Science & Engineering）
基金
国防重点实验室基金项目资助(批准号:51443020103JB)
关键词
螺旋桨
噪声
空泡
循环水槽
propeller
noise
cavitation
circulating water channel
