Hydrodynamic coefficients for calculation of hydrodynamic loads on offshore truss structures

✍ Scribed by Ove T. Gudmestad; Geir Moe

• Publisher: Elsevier Science
• Year: 1996
• Tongue: English
• Weight: 710 KB
• Volume: 9
• Category: Article
• ISSN: 0951-8339
• DOI: 10.1016/0951-8339(95)00023-2

✦ Synopsis

The ctwrent American Petroleum Institute's recipe [API RP 2A WSD, Recommended practice for planning, designing and constructing fixed offshore platforms, working stress design. AP1, USA, 1993.]for calculation of hydrodynamic loads on offshore truss structures is compared with the corresponding North Sea Design Practice, as given by the rules of Det Norske Veritas. Most emphasis is put on the hydrodynamic coefficients and the estimation of design current as these issues are identified to be particularly critical Use of the updated AP1 (1993) recommendations in which the drag coefficient for roughened cylinders is increased from a minimum of O.6 (AP11991) to 1.05 (AP! 1993) and where current is included, could lead to a general increase in the estimated load level on slender offshore structures [