소음진동 (Journal of KSNVE)

한국소음진동공학회 (The Korean Society for Noise and Vibration Engineering)
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임의 경계조건을 가진 원통셸 구조의 유체영향계수 해석

An Analysis on the Fluid-Loading Coefficients of Cylindrical Shell Structure With Arbitrary end Conditions

  • 전재진 (국방과학연구소, 수중 소음진동연구실) ;
  • 정우진 (국방과학연구소, 수중 소음진동연구실)
  • 발행 : 1996.06.01
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초록

The general approach using sine series expansions was represented to evaluate the radiation loading from a vibrating surface on a simply supported cylinder. In this paper, the fluid-loading coefficients (radiation impedance) for a submerged finite cylindrical shell with an arbitrary end condition are defined and evaluated. The vibrations of cylindrical shell are expressed by using cosine series expansions to analyze the radiation impedance for a finite cylindrical shell. It is possible to represent the displacements at both ends of cylindrical shell in comparison with sine series. The direct and cross modal components of fluid-loading coefficients are shown and the validity of cosine series expansions are verified from the results of numerical computations. This approach and results are directly applicable in the analysis of sound radiation from subemerged finite cylindrical shell with arbitrary end conditions.

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참고문헌

  1. Computers & Structures v.6 Numerical Fluid Loading Coefficients for the Modal Velocities of a Cylindrical Shell Sandman, B. E.
  2. J. Acoust. Soc. Am. v.63 no.2 Radiated Power and Radiation Loading of Cylindrical Surfaces with Nonuniform Velocity Distibution Stepanishen, P. R.
  3. J. Acoust. Soc. Am. v.71 no.4 Modal Coupling in the Vibration of Fluid Loaded Cylindrical Shells Stepanishen, P. R.
  4. J. Sound and Vibration v.131 no.3 Modal Analysis of a Shell's Acoustic Radiation in Light and Heavy Fluid Laulagnet, B.;Guyader, J. L.
  5. J. Acoust. Soc. Am. v.88 no.2 Radiation and Vibrational Properties of Submerged Stiffened Cylindrical Shells Harrai, A.;Sandman, B.E.
  6. J. Acoust. Soc. Am. v.95 no.6 Analytical and Experimental Determination of the Vibration and Pressure Radiation from a Submerged, Stiffened Cylindrical Shell with Two End Plates Harrai, A.;Sandman, B. E.;Zaldonis, J. A.
  7. Sound, Structure and Their Interaction Junger, M. C.;Feit, D.