Numerical and experimental investigation on vibro-acoustic response of a shaft-hull system

被引：16
|
作者：
Li, Chenyang [1 ]
Wang, Jian [1 ]
Qu, Yegao [1 ]
Zhang, Zhiyi [1 ]
Hua, Hongxing [1 ]
机构：
[1] Shanghai Jiao Tong Univ, Inst Vibrat Shock & Noise, State Key Lab Mech Syst & Vibrat, Shanghai 200240, Peoples R China
来源：
ENGINEERING ANALYSIS WITH BOUNDARY ELEMENTS | 2016年 / 71卷
关键词：
Finite element method; Boundary element method; Experiment; Hull; Shaft; Vibro-acoustic response; ACTIVE MAGNETIC CONTROL; TRANSMISSION-SYSTEMS; MODAL DECOMPOSITION; VIBRATION; RADIATION; OPTIMIZATION; POWER; RING;
D O I：
10.1016/j.enganabound.2016.07.016
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
The vibro-acoustic characteristics of a submerged shaft-hull system are investigated by numerical and experimental methods. A numerical model for the structure-fluid interaction of the system is formulated by the coupled finite element/boundary element methods. With this model, the influence of the shaft vibration on the dynamic and acoustic responses of the submerged shaft-hull system is analyzed via the modal decomposition technology. It is found that reduction of the stiffness of the stern bearing and symmetrization of the foundation can reduce the sound radiation from the submerged shaft-hull system subjected to transversal and axial force excitations, respectively. The numerical solutions are validated by the experimental results, and reasonable agreement is observed. (C) 2016 Elsevier Ltd. All rights reserved.
引用
收藏
页码：129 / 139
页数：11
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