Long-term Cyclic Response and Bearing Capacity of Offshore Wind Turbines Foundation Considering Local Scour Effect
PhD student (SA-Res)
|
Hanbo Zheng |
Supervisors
 |  |  |
Prof. Fayun Liang(Tongji University, China) | A/Prof. Hao Zhang(Donghua University, China) | Prof Yinghui Tian |
Project Start Date: March, 2021
Project Details
With an increase in the demand for renewable energy and the maturity of offshore construction technology, offshore wind farms have been rapidly constructed and have flourished worldwide over the past decade. As one of the most popular supporting structures used for offshore wind turbines (OWTs), monopile foundations accounted for 81% of the installed OWT substructures in Europe. My current research work focuses on the long-term cyclic response and bearing capacity of offshore wind turbines foundation considering local scour effect. Monopile-supported OWTs are subjected to a complex combination of environmental loadings when deployed in extreme marine environments, including extreme wind and wave loads due to typhoons and storm surges as well as the erosion of soil due to scour, which necessitates formidable requirements for the ultimate bearing capacity of the monopile foundations. I focus on the mechanical response of OWT system under the combined effect of cyclic loading and scour, such as the cumulative rotation evolution, natural frequency migration, and ultimate bearing capacity reduction. The main research methods interest me include the flume model tests and the numerical investigation through advanced constitutive models.
