Research on vibration and underwater radiated noise of ship by propeller excitations

被引：0

作者：

Fu, Jian ^{[1
]}

Wang, Yong-Sheng ^{[1
]}

Ding, Ke ^{[1
]}

Wei, Ying-San ^{[1
]}

机构：

[1] College of Marine Power Engineering, Naval University of Engineering, Wuhan

来源：

Chuan Bo Li Xue/Journal of Ship Mechanics | 2015年 / 19卷 / 04期

关键词：

Acoustic radiation; BEM; FEM; Fluid-structure interaction; Ship; Structure vibration;

D O I：

10.3969/j.issn.1007-7294.2015.04.016

中图分类号：

学科分类号：

摘要：

The finite element method (FEM) and boundary element method (BEM) are used to calculate the structure vibration and underwater radiated noise of ship structure caused by the propeller excitations. It is analyzed and compared that the influence of vibration and underwater radiated noise are caused by three direction forces (shaft, transverse and vertical). The study shows that the vibration response appears line spectrum at axial passing frequency (APF), blade passing frequency (BPF), 2BPF and ship nature frequencies. The underwater radiated noise is the biggest excited by the transverse force, then is the vertical force, last is the shaft force. The biggest radiated noise power of ship hull by three forces is mainly excited by transverse force at BPF, then is excited by shaft force at APF. It mainly berceuses that the BPF of transverse force is approach with ship nature frequency. ©, 2015, China Ship Scientific Research Center. All right reserved.

引用

页码：470 / 476

页数：6

共 15 条

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