摘要
为了预报船舶海水冷却系统水下辐射流噪声情况,以船舶海水冷却系统舷侧阀出口管路为对象,采用FEM/AML技术,进行水下辐射噪声分析,对比不同舷侧阀水下深度、出口管径对流噪声的影响。结果表明海水冷却系统舷侧阀水下流噪声以低频为主,增大舷侧阀管径、降低排出口水下位置等措施可以降低系统流噪声。
In order to predict the underwater flow noise of SW system,numerical simulation research and noise prediction using FEM/AML method was made on discharge valve pipe of SW system in this paper.Compared the differences of the depth and the diameter of the discharge valve.The results show that the flow noise of discharge valve pipe of SW system is dominated by low frequencies,increasing the depth and the diameter can reduce the flow noise.
作者
徐国栋
孙启
郑荣
XU Guo-dong;SUN Qi;ZHENG Rong(Marine Design and Research Institute of China,Shanghai 200011,China)
出处
《舰船科学技术》
北大核心
2021年第7期102-106,共5页
Ship Science and Technology
