DOI QR코드

DOI QR Code

An Analysis and Visualization System for Ship Structural Intensity Using a General Purpose FEA Program

범용 유한요소해석 프로그램을 이용한 선박 진동인텐시티 해석 및 가시화 시스템

  • Kim, Byung-Hee (Dept. of Naval Architecture and Ocean Eng. , Pusan National University) ;
  • Yi, Myung-Seok (Hanjin Heavy Industries & Construction Co., Ltd.) ;
  • Cho, Dae-Seung (Dept. of Naval Architecture and Ocean Eng. , Pusan National University)
  • 김병희 (부산대학교 조선해양공학과) ;
  • 이명석 (한진중공업(주)) ;
  • 조대승 (부산대학교 조선해양공학과)
  • Published : 2005.10.01

Abstract

The structural intensity analysis, which calculates vibration energy flow from vibratory velocity and internal force of a structure, can give information on sources' power, dominant transmission path and sink of vibration energy. In this study, we present a system for structural intensity analysis and visualization to apply for anti-vibration design of ship structures. The system calculates structural intensity from the results of forced vibration analysis and visualize the intensity using a general purpose finite element analysis program MSC/Nastran and its pre- and post-processor program. To demonstrate the analysis and visualization capability of the presented system, we show and discuss the results of structural intensity analysis for a cross-stiffened plate and a 70,500 OW crude oil tanker

Keywords

References

  1. 이동환, 조대승, 2001, '유한요소법을 이용한 선체 국부 구조물의 진동인텐시티 해석,' 대한조선학회 논문집, 제 38권, 제 3호, pp. 62-73
  2. 조대승, 김사수, 정상민, 1998, 'Assumed Mode Method를 이용한 보강판의 진동인텐시티 해석,' 대한조선학회 논문집, 제 35권, 제 4호, pp. 76-86
  3. 조대승, 정상민, 김재홍, 2003, '집중부가물이 보강판의 진동파워 흐름에 미치는 영향에 대한 수치 해석적 고찰,' 대한조선학회 논문집, 제 40권, 제 1호, pp. 36-46
  4. Alfredsson, K.S., Josefson, B.L. and Wilson, M.A., 1996, 'Use of the energy flow concept in vibration design,' Journal of AIAA, Vol. 34, No. 6, pp. 1250-1255 https://doi.org/10.2514/3.13220
  5. Hambric, S.A., 1990, 'Power flow and mechanical intensity calculations in structural finite element analysis,' Journal of Vibration and Acoustics ASME, 112, pp. 542-549 https://doi.org/10.1115/1.2930140
  6. Noiseux, D.U., 1970, 'Measurement of power flow in uniform beams and plates,' Journal of the Acoustical Society of America, Vol. 47, No. 1, pp. 238-247 https://doi.org/10.1121/1.1911472
  7. Pavic, G., 1990, 'Vibrational energy flow in elastic circular cylindrical shells,' Journal of Sound and Vibration, Vol. 142, No. 2, pp. 293-310 https://doi.org/10.1016/0022-460X(90)90558-H
  8. Verheij, J.W., 1980, 'Cross spectral density methods for measuring structure borne power flow on beams and pipes,' Journal of Sound and Vibration, Vol. 70, No. 1, pp. 133-139 https://doi.org/10.1016/0022-460X(80)90559-3