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Shock and Vibration上的论文
Title： An approximate analytical method of the nonlinear vibro-acoustic coupling system

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zqizheng: 金币+5, ★★★很有帮助 2014-09-02 14:19:43
An Approximate Analytical Method of the Nonlinear Vibroacoustic Coupling System
作者:Zhou, QZ (Zhou, Qizheng)[ 1 ] ; Wang, DS (Wang, Deshi)[ 1 ] ; Zhu, YY (Zhu, Yongyong)[ 1 ]
SHOCK AND VIBRATION
文献号: 315416
DOI: 10.1155/2014/315416
出版年: 2014
查看期刊信息
摘要
An approximate analytical method of the nonlinear vibroacoustic coupling system is proposed for the first time. Taking the Duffing oscillator-plate-medium system as an example, the nonlinear vibroacoustic coupling equations are developed using variational principle. The two major difficulties which lie in solving the coupling equations are the uncertain motion of the oscillator and the surface acoustic pressure on the plate, a system for which the fluid-structure coupling cannot be neglected. Based on the incremental harmonic balance (IHB) method, the motion of the oscillator is expressed in the form of the Fourier series, and then the modal expression method and the incoherent assumption are employed to discretize the displacement and the surface pressure of the plate. Then the approximate analytical solution is given by the IHB method. The characteristics of acoustic radiation and surface quadratic velocity of the plate, the nonlinear characteristics of oscillator, and the influence of the excitation frequency and the nonlinear stiffness on the results are investigated by the numerical simulation. The results show that the excitation at the frequency close to the natural frequency of the oscillator can produce a significant response of the third-harmonic generation which determines the vibroacoustic characteristics of the plate.
关键词
KeyWords Plus:MUTUAL RADIATION RESISTANCES; HARMONIC-BALANCE METHOD; THIN ELASTIC PLATES; RECTANGULAR PLATE; VIBRATION; FORMULATION; FIELDS; PANELS; SOUND; POWER
作者信息
通讯作者地址: Zhou, QZ (通讯作者)
              Naval Univ Engn, Dept Weaponry Engn, Wuhan 430033, Peoples R China.
地址:
              [ 1 ] Naval Univ Engn, Dept Weaponry Engn, Wuhan 430033, Peoples R China
电子邮件地址:zqizheng@sina.cn
基金资助致谢
基金资助机构        授权号
National Natural Science Foundation of China        
11372350
查看基金资助信息   
出版商
HINDAWI PUBLISHING CORPORATION, 410 PARK AVENUE, 15TH FLOOR, #287 PMB, NEW YORK, NY 10022 USA
类别 / 分类
研究方向:Acoustics; Engineering; Mechanics
Web of Science 类别:Acoustics; Engineering, Mechanical; Mechanics
文献信息
文献类型:Article
语种:English
入藏号: WOS:000336538900001
ISSN: 1070-9622
电子 ISSN: 1875-9203
期刊信息

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zqizheng: 金币+5, ★★★很有帮助 2014-09-02 14:19:54
标题: An Approximate Analytical Method of the Nonlinear Vibroacoustic Coupling System
作者: Zhou, QZ (Zhou, Qizheng); Wang, DS (Wang, Deshi); Zhu, YY (Zhu, Yongyong)
来源出版物: SHOCK AND VIBRATION  文献号: 315416  DOI: 10.1155/2014/315416  出版年: 2014  
Web of Science 核心合集中的 "被引频次": 0
被引频次合计: 0
引用的参考文献数: 22
摘要: An approximate analytical method of the nonlinear vibroacoustic coupling system is proposed for the first time. Taking the Duffing oscillator-plate-medium system as an example, the nonlinear vibroacoustic coupling equations are developed using variational principle. The two major difficulties which lie in solving the coupling equations are the uncertain motion of the oscillator and the surface acoustic pressure on the plate, a system for which the fluid-structure coupling cannot be neglected. Based on the incremental harmonic balance (IHB) method, the motion of the oscillator is expressed in the form of the Fourier series, and then the modal expression method and the incoherent assumption are employed to discretize the displacement and the surface pressure of the plate. Then the approximate analytical solution is given by the IHB method. The characteristics of acoustic radiation and surface quadratic velocity of the plate, the nonlinear characteristics of oscillator, and the influence of the excitation frequency and the nonlinear stiffness on the results are investigated by the numerical simulation. The results show that the excitation at the frequency close to the natural frequency of the oscillator can produce a significant response of the third-harmonic generation which determines the vibroacoustic characteristics of the plate.
入藏号: WOS:000336538900001
语种: English
文献类型: Article
KeyWords Plus: MUTUAL RADIATION RESISTANCES; HARMONIC-BALANCE METHOD; THIN ELASTIC PLATES; RECTANGULAR PLATE; VIBRATION; FORMULATION; FIELDS; PANELS; SOUND; POWER
地址: [Zhou, Qizheng; Wang, Deshi; Zhu, Yongyong] Naval Univ Engn, Dept Weaponry Engn, Wuhan 430033, Peoples R China.
通讯作者地址: Zhou, QZ (通讯作者),Naval Univ Engn, Dept Weaponry Engn, Wuhan 430033, Peoples R China.
电子邮件地址: zqizheng@sina.cn
出版商: HINDAWI PUBLISHING CORPORATION
出版商地址: 410 PARK AVENUE, 15TH FLOOR, #287 PMB, NEW YORK, NY 10022 USA
Web of Science 类别: Acoustics; Engineering, Mechanical; Mechanics
研究方向: Acoustics; Engineering; Mechanics
IDS 号: AI0LL
ISSN: 1070-9622
电子 ISSN: 1875-9203
29 字符的来源出版物名称缩写: SHOCK VIB
ISO 来源出版物缩写: Shock Vib.
来源出版物页码计数: 10
基金资助致谢:
基金资助机构        授权号
National Natural Science Foundation of China        
11372350
This work was supported by National Natural Science Foundation of China (Grant no. 11372350).
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