Ole David Økland
Ole David Økland
Publikasjoner og ansvarsområder
Dynamic Responses of Jacket-Type Offshore Wind Turbines Using Decoupled and Coupled Models
OMAE2017-62643 New Combined CFD and Model Testing Technique for Identification of Wave Impact Loads on a Semisubmersible
A procedure is presented describing how to estimate realistic loads using combined numerical and model test data. Measured platform motions are imposed on the structure during the CFD analysis. The combination of the wave matching procedure with the imposed measured platform motion gives a very good...
Impact Loads From Drop Test of a Circular Section With 42 Force Transducers
Results from previous model test campaigns of various large-volume platforms indicate that wave impact loads on vertical platform columns can become high in extreme sea states. Moreover, column slamming is a highly non-linear and complex problem and reliable estimation of Ultimate Limit State (ULS) ...
Dynamic responses of a jacket-type offshore wind turbine using decoupled and coupled models
Control scheme for load mitigation and minimization of motions of floating wind turbine
In the application for NOWITECH a set of milestones for the project is listed. Milestone nol5 (planned in WP6.1) is referred to as: Control scheme for load mitigation and minimization of motions of floating wind turbine (control algorithm and report). This report summarizes briefly the work carried ...
Second-order random wave kinematics and resulting loads on a bottom-fixed slender monopile
The importance of including second-order nonlinear random wave kinematics in the numerical prediction of drag-induced shear forces and moments, at various levels on a bottom-fixed slender monopile in 40m water depth, is investigated. A vertical circular cylinder of diameter 0.5m is considered, repre...