水下航行体水动力噪声预报方法及其试验验证  

Research on the prediction method of hydrodynamic noise of underwater vehicles and its validation

作　　者：吕世金[1] 张晓伟[1] 丁灿龙 丁逸飞 LV Shi-jin;ZHANG Xiao-wei;DING Chan-long;DING Yi-fei(China Ship Science Research Center,Nation Key Laboratory on Ship Vibration and Noise,Wuxi 214082,China)

机构地区：[1]中国船舶科学研究中心船舶振动噪声重点试验室

出　　处：《水动力学研究与进展（A辑）》2019年第5期571-576,共6页Chinese Journal of Hydrodynamics

摘　　要：该文采用结构离散法,建立水下航行体水动力辐射噪声预报方法。模型试验表明,3-9 m/s水速范围内,计算结果与实验结果有较好的一致性,偏差小于3 dB。该文方法计算量不大,可以用来进行水下航行体中高频水动力辐射噪声快速预报。With using of sub-element method the vehicle is divided into a lot of panel sub-elements for predicting hydrodynamic radiation noise of underwater vehicle.Experiments show that the calculation results of underwater vehicle hydrodynamic noise agree with that of model experiment and the difference of sound pressure level is less than 3 dB above the speed of 3 m/s.This method that calculate hydrodynamic noise of underwater vehicles is very quickly,it may be used for predicting hydrodynamic noise of underwater vehicle.

关 键 词：水下航行体 水动力噪声 理论预报 试验验证 

分 类 号：O427.5[理学—声学]