Influence of varying inertia coefficient and wave directionality on TLP geometry

Abstract

Response behavior of TLP under hydro-dynamic loading is nonlinear due to large structural displacements and fluid-structure interaction. This study focuses on influence of two imperative parameters namely inertia coefficient and wave directionality on its geometry. Paper develops a mathematical formulation for non-linear variation of hydrodynamic inertia coefficient (Cm) along the water depth to yield optimum force on TLPs as well as influence of wave directionality on their geometric configuration while discussing the method of solution. Responses are obtained for two configuration of TLPs namely square and equivalent triangular TLP with total initial pretension same as that of square. Copyright © 2008 by The International Society of Offshore and Polar Engineers.