Journal of KSNVE (소음진동)

The Korean Society for Noise and Vibration Engineering (한국소음진동공학회)
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Modal Analysis of Eccentric Shells with Fluid-Filled Annulus

유체가 채워진 환형공간을 갖는 편심 원통형 셸의 모드 해석

  • 정명조 (한국원자력안전기술원 방사선공학연구실) ;
  • 정경훈 (한국원자력연구소 동력로기술개발팀) ;
  • 박윤원 (한국원자력안전기술언 방사선공학연구실)
  • Published : 2000.06.01
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Abstract

Inversitgated in this study are the modal characteristics of the eccentric cylindrical shells with fluid-filled annulus. Theoretical method is developed to find the natural frequencies of the shell using the finite Fourier expansion and their results are compared with those of finite element method to verify the validation of the method developed. The effect of eccentricity on the modal characteristics of the shells is investigated using a finite element modeling.

본 연구에서는 유체가 채워진 환형공간을 갖는 편심 원통형 쉘의 모드 특성을 조사하였다. Stokes 변환을 응용한 Fourier 급수전개법으로 고유진동수를 구하는 방법을 전개하여 유체가 채워진 환형공간을 갖는 편심원통형 쉘에 대한 이론적인 해를 구하였고 이를 유한요소법에 의한 값과 비교하였다. 또한 편심된 정도가 원통형 쉘의 모드 특성에 미치는 영향을 검토하였고 편심율에 따른 이들의 특성도 고찰하였다.

Keywords

References

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