HYDRODYNAMIC LOADS DUE TO EARTHQUAKES ON SUBSEA STORAGE TANKS

A systematic analysis of effects of compressibility of water on hydrodynamic behaviour of axisymmetrical subsea storage tanks has been carried out, using a hybrid element method in the frequency domain. Including the compressibility of water it provides physically hydrodynamic damping at higher frequencies and it has substantial influence on added mass distribution and on hydrodynamic pressure distribution. The specific contribution of this study is that for certain frequencies of excitation the added mass for subsea structures becomes negative. The variation of hydrodynamic pressure, added mass and hydrodynamic damping coefficient with respect to the frequencies are presented.

• Supplemental Notes:
  • ISOPE 94, 4th Intl Offshore & Polar Engng Conf; 10-15 April 1994; Osaka, Japan. Sponsored by ISOPE, USA et al. Procs. Pubs by ISOPE, ISBN 1-880653-13-3. Vol III, p 198 [12 p, 15 ref, 14 fig]
• Authors:
  • Ganapath, C
  • Mahrenholtz, O
• Publication Date: 1994

Language

• English

Subject/Index Terms

• TRT Terms: Earthquakes; Storage tanks
• Old TRIS Terms: Hydrodynamic loads
• Subject Areas: Geotechnology; Marine Transportation; Terminals and Facilities;

Filing Info

• Accession Number: 00709386
• Record Type: Publication
• Source Agency: British Maritime Technology
• Files: TRIS
• Created Date: Aug 14 1995 12:00AM