Research on Vibration Reduction Control of Wind Turbine under Scouring Effect by Tuned Mass Damper
The scour effect is easy to cause excessive vibration of offshore wind turbine structure. Therefore,the paper studies the vibration control of offshore single pile wind turbine structure with scour effect by Tuned Mass Damper (TMD) system. Based on the three-dimensional shell element finite element model of 10 MW wind turbine,combined with the open source software FAST aerodynamic module and AQWA for joint simulation. The results show that the scour effect will lead to the aggravation of the vibration of the wind turbine tower and pile foundation structure,and the vibration reduction control effect of the tower under the scour effect is more obvious after the installation of TMD,which can effectively weaken the negative impact of the scour on the wind turbine. Compared with the forward and backward displacement,the control effect of TMD on lateral displacement is more prominent. After the wind turbine is scoured or equipped with a TMD system,the extreme position of the forward and backward strain energy of the tower will be changed,and the TMD can reduce the mean value of the axial and circumferential strain energy of the wind turbine tower after the scour,but the area of the concentrated distribution area of the strain energy increases.
Offshore Wind TurbineTuned Mass DamperSoil-structure Coupling ModelScour HoleDynamic ResponseFinite Element Model
万方数据
维普
