SEA LOADS ON OFFSHORE PLATFORMS, DESIGN WAVES AND SEA SPECTRA, PART TWO

This is a continuation of an article appearing in the February 1976 issue of this journal dealing with environmental conditions of the sea in relation to offshore installations. A discussion of complex waves includes sea-state, sea-spectrum, statistics, characteristic values, mean apparent period, sea-state probability (probability of exceedance) and reference waves. Steady wind and wind gust are defined. Elementary hydrodynamic forces due to waves and to current aid is discussed followed by a description of hydrodynamic coefficients, phase relationships and the integrated force of wave and current loads. The method for comparison of results by 5th order theory with results by spectral theory is analyzed. A discussion of the calculation of the stability afloat of an offshore unit is also given.

• Supplemental Notes:
  • See Part 1, 20 149595.
• Corporate Authors:

  Bureau Veritas

  31 rue Henri-Rochefort
  Paris 17e,   France 
• Authors:
  • Planeix, J M
• Publication Date: 1976-6

Media Info

• Features: References;
• Pagination: p. 47-53
• Serial:
  • Bulletin Technique du Bureau Veritas
  • Publisher: Bureau Veritas

Subject/Index Terms

• TRT Terms: Electromagnetic spectrum; Force; Hydrodynamic pressure; Hydrodynamics; Motion; Offshore platforms; Seas; Spectrum analysis; Stability (Mechanics); Water waves; Waves; Weather forecasting
• Old TRIS Terms: Hydrodynamic forces; Motion response of platforms; Offshore platform stability; Platform motions; Sea loads; Sea spectra; Wave forces on structures; Wave forecasting; Wind forces on structures
• Subject Areas: Bridges and other structures; Design; Hydraulics and Hydrology; Marine Transportation;

Filing Info

• Accession Number: 00149599
• Record Type: Publication
• Source Agency: Bureau Veritas
• Files: TRIS
• Created Date: Apr 13 1977 12:00AM