FLUID LOADING ON OFFSHORE STRUCTURES, A STATE OF THE ART APPRAISAL: WAVE LOADS

Critical review of the problems of estimating wave loads on offshore structures. It has been written in response to a recommendation made by the NPL Offshore Structures Fluid Loading Advisory Group (OSFLAG) and approved by the Ship and Marine Technology Requirements Board. This called for a state of art appraisal covering the whole field of fluid loading on offshore structures including forces due to currents, winds and waves. The present work is concerned mainly with the more important wave loads but similar papers dealing with forces due to currents and winds may follow. The primary objective was to identify research requirements, but basic concepts underlying existing practice are also stated. The paper begins with a brief historical outline tracing development from early classical studies of steady drags in air and water to more recent work in which unsteady behaviour, such as that due to eddy shedding or wave motion plays a major role. After a brief look at the basic mechanics of water waves, attention is then devoted to a detailed discussion of the various types of force classified as reflection, diffraction, inertia, lift and drag with an indication of the conditions in which they are significant. This leads to an appraisal of contemporary problems and research requirements.

• Corporate Authors:

  Royal Institution of Naval Architects, England

  10 Upper Belgrave Street
  London SW1X 8BQ,   England 
• Authors:
  • Hogben, N
• Publication Date: 1975

Media Info

• Pagination: 42 p.

Subject/Index Terms

• TRT Terms: Fluid dynamics; Force; Loads; Ocean waves; Offshore structures; State of the art; Water waves; Waves
• Old TRIS Terms: Fluid loading effects; Wave forces on structures; Wave loads
• Subject Areas: Bridges and other structures; Design; Hydraulics and Hydrology; Marine Transportation;

Filing Info

• Accession Number: 00129251
• Record Type: Publication
• Source Agency: Royal Institution of Naval Architects, England
• Report/Paper Numbers: Monograph
• Files: TRIS
• Created Date: Feb 19 1976 12:00AM