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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
- Issue Date
- 2009
- Citation
- 한국소음진동공학회논문집, vol.19, No.11, pp. 1192-1201
- Keywords
- Circular Cylindrical Shell ; Spectral Finite Element Method ; Boundary Element Method ; Frequency Response Function ; Radiated 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
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