EXPERIMENTAL INVESTIGATIONS FOR HIGH FREQUENCY VIBRATION PREDICTION WITH A SEA THEORETICAL MODEL

Statistical energy analysis (SEA) can be used for predicting the distribution of high frequency vibrations and/or noise in a complex structure. However, there are still some problems remaining in practical applications. This paper presents the analysis of the vibrations of a theoretical model based on the SEA program developed by the authors, and the comparison between predicted and experimental results. For the purpose of more accurate experimental results, densely distributed vibration measurement points are used, and computer processing of data transformed by A-D converter is used for experimental data analysis. It was found that the experimental results were generally 60-70 % of those of calculations. Qualitatively, relatively good results have been obtained. Therefore, to achieve more accurate theoretical predictions, it is necessary to improve the accuracy of experiment for comparison, so as to make the SEA method more applicable.

• Supplemental Notes:
  • PRADS '92, 5th Intl Symp on the Practical Design of Ships and Mobile Units; 17-22 May 1992; Newcastle upon Tyne, U.K. Pprs. Publ by Elsevier Science Pubs Ltd., U.K., Vol. 1, p 1.514 [13 p, 3 ref, 3 tab, 9 fig]
• Authors:
  • Kihara, T
  • Miyata, O
• Publication Date: 1992

Language

• English

Subject/Index Terms

• TRT Terms: Statistical analysis; Structural analysis; Structural mechanics; Vibration
• Uncontrolled Terms: Structural response
• Subject Areas: Data and Information Technology; Marine Transportation;

Filing Info

• Accession Number: 00703367
• Record Type: Publication
• Source Agency: British Maritime Technology
• Files: TRIS
• Created Date: Aug 14 1995 12:00AM