Shaking Table Test on a Scaled Model of Offshore Wind Turbine on Jacket Foundation

• Main Authors: Huei-WunSyue, 薛惠文
• Other Authors: Kuang-Yen Liu
• Format: Others
• Language: zh-TW
• Published: 2019
• Online Access: http://ndltd.ncl.edu.tw/handle/n4y2uq

碩士 === 國立成功大學 === 土木工程學系 === 107 === The purpose of this study is to investigate the response of the Offshore Wind Turbines on jacket foundation under earthquake. A scaled model is designed for the experiment, and a large multi-axials flexible boundary shear box is used to construct an underwater foundation and site test platform to make a scale model of seabed alluvial soil. The size of the NREL 5MW Wind Turbine is used for scale simulation, and its period is set as the fitting target, and the accuracy of the model is determined according to the specifications. Then making simulated seismic force as input and placing the specimen on the shaking table to conduct the experiment. Collect the responses of structures and sites and observe the influence of soil liquefaction on offshore wind turbine through different characteristics and magnitude of PGA. After a series of experiments, the numerical analysis software SAP2000 was used to simulate and analyze the experiment results. Among them, the soil spring setting of the site was set according to the American Petroleum Institute (API) specifications. The experimental results show that compared with the experimental results, the errors between the analytical and experimental values are smaller under the smaller PGA earthquakes and smaller under the non-long-period earthquakes. In the future, further exploring the results of the site data will make the software model more optimized, to achieve the purpose pf using software to simulate and analyze the response of offshore wind turbine under seismic force.