대한조선학회논문집 (Journal of the Society of Naval Architects of Korea)

  • 제40권1호
  • /
  • Pages.36-46
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  • 2003
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  • 1225-1143(pISSN)
  • /
  • 2287-7355(eISSN)
대한조선학회 (The Society of Naval Architects of Korea)
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집중 부가물이 보강판의 진동파워 흐름에 미치는 영향에 대한 수치 해석적 고찰

Numerical Analysis on the Affection of Lumped Attachments to the Vibration Power Flow in Cross-stiffened Plate

  • 조대승 (부산대학교 조선해양공학과) ;
  • 정상민 (SK 케미컬 환경소재연구소) ;
  • 김재홍 (삼성중공업 조선플래트 연구소)
  • 발행 : 2003.02.01
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초록

To investigate the affection of lumped mass and spring on the vibration power flow of cross-stiffened plate experiencing bending vibration, structural intensity analysis is done using the modal analysis based on assumed mode method. The numerical analysis is carried out varying the mass and spring constant and their attached positions. The results show that both the spring and the mass may cause to large variation of not only vibratory displacement but also vibratory power flow patterns in case of little change of natural frequencies, and the attachments near to excitation location can effectively reduce the magnitude of maximum structural intensity.

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참고문헌

  1. 김용조, 김양한, 1997, '평판 인텐시티 측정을 통한 근접장 음향인텐시티와 손실계수 측정법', 한국소음진동공학회지, 제7권 제4호, pp. 589-596.
  2. 이동환, 조대승, 2001, '유한요소법을 이용한 선체 국부 구조물의 진동인텐시티 해석', 대한조선학회 논문집, 제38권 제3호, pp. 62-73.
  3. 조대승, 김사수, 정상민, 1998, 'Assumed Mode Method를 이용한 보강판의 진동인텐시티 해석', 대한조선학회 논문집, 35권 4호, pp. 76-86.
  4. Alfredsson, K.S., Josefson, B.L. and Wilson, M.A., 1996, 'Use of the Energy Flow Concept in Vibration Design', Journal of AIAA, 34(6), pp. 1250-1255. https://doi.org/10.2514/3.13220
  5. Gavric, L. and Pavic, G., 1993, 'A Finite Element Method for Computation of Structural Iintensity by the Normal Mode Approach', Journal of Sound and Vibration, 164(1), pp. 29-43. https://doi.org/10.1006/jsvi.1993.1194
  6. Hambric, S.A., 1990, 'Power Flow and Mechanical Intensity Calculations in Structural Finite Element Analysis', ASME Journal of Vibration and Acoustics, 112, pp. 542-549. https://doi.org/10.1115/1.2930140
  7. ISO 6954, 2000, 'Mechanical Vibration -Guidelines for the Measurement, Reporting and Evaluation of Vibration in Merchant Ships', ISO.
  8. Meirovitch, L., 1967, Analytical Methods in Vibrations, Macmillan Publishing Co.
  9. Noiseux, D.U., 1970, 'Measurement of Power Flow in Uniform Beams and Plates', Journal of the Acoustical Society of America, 47(1), pp. 238-247. https://doi.org/10.1121/1.1911472
  10. Pavic, G., 1976, 'Measurement of Structure Borne Wave Intensity, Part I : Formulation of the Methods', Journal of Sound and Vibration, 49(2), pp. 221-230. https://doi.org/10.1016/0022-460X(76)90498-3
  11. Saijyou, K. and Yoshikawa, S., 1996, 'Measurement of Structural and Acoustic Intensities Using Near-field Acoustical Holography', Journal of Applied Physics of Japan, 35, pp. 3167-3174. https://doi.org/10.1143/JJAP.35.3167
  12. Troitsky, M.S., 1976, Stiffened Plates -Bending, Stability and Vibrations, Elsevier Scientific Publishing Co.
  13. Zhang, Y. and Mann III, J.A., 1996, 'Measuring the Structural Intensity and the Force Distribution in Plates', Journal of the Acoustical Society of America, 99(1), pp. 345-353. https://doi.org/10.1121/1.414546
  14. Zhang, Y. and Mann III, J.A., 1996, 'Examples of Using Structural Intensity and the Force Distribution to Study Vibrating Plates', Journal of the Acoustical Society of America, 99(1), pp. 354-361, 1996. https://doi.org/10.1121/1.414547