Coupling Dynamics Response Research For Mono-Pile Offeshore Wind Turbine

Offshore wind turbines work under the variegated condition combinedby wind,waves and flow,so dynamic response analysis for the supportingstructure becomes necessary.The dynamic response of the supporting structure analysis coversvarieties of combinations of load, land-based wind turbine support structuredynamic response analysis, fixed single pile waves loads calculation, windturbine operation load calculation and pile-soil relation etc.From the current structure design and research area of offshore windturbine, most scholars build the wind turbine support structure and bladestogether in some simulation software, then calculate load and put load oncertain part independently.But in this paper structure model is simplified, focus on the dynamicresponse analysis for support structure；Highlight the coupling model, andestablish the coupling model by using ABAQUS user subroutines afterconsidering the actual happen incentive and response of the couplingrelationship.In addition , pile-soil relationship is mainly introduced in this paper,and we use the p-y curve from American ocean petroleum industry standard(API) for reference.BEM theory is used for the wind turbine operation load calculation inthe process of the use of the design which is the best known and mostextensive theory, it is also used for programming load FORTRANsubroutines to complete coupling model .