螺旋桨脉动压力诱导的船体振动研究  

Research on Hull Vibration Induced by Propeller Pulsating Pressure

作　　者：秦升杰 吴卫国[2] 宋慧慧 林永水[2] 田旭 刘保华 QIN Shengjie;WU Weiguo;SONG Huihui;LIN Yongshui;TIAN Xu;LIU Baohua(National Deep Sea Center Shandong, Qingdao 266235, China;School of Transportation, Wuhan University of Technology, Wuhan 430070, China;Jimo District Longquan Subdistrict Office, Qingdao 266217, China)

机构地区：[1]国家深海基地管理中心,青岛266235 [2]武汉理工大学交通学院,武汉430070 [3]即墨龙泉街道办事处,青岛266217

出　　处：《武汉理工大学学报（交通科学与工程版）》2020年第2期260-264,共5页Journal of Wuhan University of Technology（Transportation Science & Engineering）

基　　金：工信部高技术船舶科研项目(K24366);泰山学者工程专项经费(TSPD20161007)资助。

摘　　要：应用CFD与有限元方法对某江海直达船螺旋桨脉动压力诱导的船体振动特性展开研究.基于RANS方法,通过“船+桨”数值自航试验对螺旋桨诱导的脉动压力进行了预报,得到监测点处螺旋桨诱导的脉动压力的时域、频域变化曲线及分布规律.提取所有监测点的脉动压力作为输入激励,对该船进行频率响应分析,总结了在螺旋桨激励作用下船体振动响应的特性.CFD and finite element methods were applied to study the hull vibration characteristics of a river-to-sea ship induced by propeller pulsating pressure.Based on RANS method,the propeller-induced pulsating pressure was predicted through the“ship+propeller”numerical self-navigation test,and the time domain and frequency domain variation curves and distribution laws of the propeller-induced pulsating pressure at the monitoring points were obtained.The pulsating pressure at all monitoring points was extracted as input excitation,and the frequency response analysis of the ship was carried out.Finally,the characteristics of the hull vibration response under propeller excitation were summarized.

关 键 词：江海直达船 螺旋桨 脉动压力 振动 数值预报 

分 类 号：U664.33[交通运输工程—船舶及航道工程]