Influence of Pile-Soil Interaction Simulation Method on Modal Analysis of Offshore Wind Turbine Structure

Since the frequency of offshore wind turbine structure is low,the design of foundation is controlled by its own frequency.Taking offshore wind power generation project in Jiangsu Province for an example,three simulation methods of pile-soil interaction including m method,p-y curve and DP model solid finite element method are selected to analyze the impact on modal analysis of offshore wind turbine structure.The results show that the calculated frequency is basically the same with three methods and it is reasonable.