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스펙트럴유한요소법과 경계요소법을 이용한 셸의 공기 중 진동 및 방사소음 해석
Analysis of Vibration and Radiated Noise of Circular Cylindrical Shell in the Air Using Spectral Finite Element Method and Boundary Element Method

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Authors
Lee, Yung-Koo; Hong, Suk-Yoon; Song, Jee-Hun
Issue Date
2009
Publisher
한국소음진동공학회 = The Korean Society for Noise and Vibration Engineering
Citation
한국소음진동공학회논문집, vol.19, No.11, pp. 1192-1201
Keywords
Circular Cylindrical ShellSpectral Finite Element MethodBoundary Element MethodFrequency Response FunctionRadiated Noise Level
Abstract
Analysis of the vibration characteristic for cylindrical shell is more complex than plates since the
coupling effects are considered on three dimensions. Based on Love's equation, spectral finite element
method(SFEM) is introduced to predict frequency response function of finite circular cylindrical shell in
the air with simply supported - free boundary condition without simplifying the equation of motion. And
for the radiated noise analysis of cylindrical shell, indirect boundary element method(BEM) is applied
using out-of-plane displacements as an input from structural vibration analysis. Comparisons of the
structural vibration results by the spectral finite element method and commercial code, NASTRAN(FEM
based) are carried out. Likewise, for verification of radiated noise analysis results, commercial code,
SYSNOISE(BEM based) are used.
ISSN
1598-2785
Language
Korean
URI
http://hdl.handle.net/10371/21269
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College of Engineering/Engineering Practice School (공과대학/대학원)Dept. of Naval Architecture and Ocean Engineering (조선해양공학과)Journal Papers (저널논문_조선해양공학과)
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