Study on Stress Monitoring Method in Supporting Structure of Floating OffshoreWind Turbine

摘要

This paper presents a new concept of stress monitoring method for supporting structure of floating offshore wind turbine (FOWT). Though monitoring of many points is preferable for making the maintenance plan and residual fatigue life prediction of the structure, measurement of those quantities is not realistic. Instead of direct measurement, the authors propose an estimation method from motions, which are easier to be measured. The availability of the method was confirmed by a tank test with a FOWT of spar type.