A DYNAMIC ANALYSIS OF A FIXED OFFSHORE DRILLING STRUCTURE SUBJECT TO RANDOM WAVES

A fixed, deep water offshore drilling platform is subjected to a severe design storm and analyzed by frame analysis. Loadings resulting from the action of random waves are treated as dynamic excitations and investigated using a combination of spectral analysis and lumped mass modal techniques. Other loadings resulting from gravity, wind and current forces are considered to be static in nature. Final results consist of streses in all members of the platform while it is subjected to the most severe combination of design loads. These stresses are determined via a space frame computer analysis utilizing ICES STRUDL II.

• Corporate Authors:

  Massachusetts Institute of Technology

  Department of Ocean Engineering, 77 Massachusetts Avenue
  Cambridge, MA  United States  02139
• Authors:
  • Millman, D N
• Publication Date: 1973-5

Subject/Index Terms

• TRT Terms: Loads; Offshore platforms; Offshore structures; Structural analysis; Water waves
• Old TRIS Terms: Wave loads
• Subject Areas: Bridges and other structures; Hydraulics and Hydrology; Marine Transportation; Terminals and Facilities;

Filing Info

• Accession Number: 00048346
• Record Type: Publication
• Source Agency: Massachusetts Institute of Technology
• Report/Paper Numbers: MS Thesis
• Files: TRIS
• Created Date: Oct 31 1973 12:00AM