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- Title
地震作用下固定式海上风机动力模型试验及耦合数值研究.
- Authors
王 文 华; 李 昕; 孔 宪 京
- Abstract
As a multi degree-of-freedom system under complex environmental conditions, the effects of the interactions among the environmental loads, rotor-nacelle-assembly (RNA) and support system should be studied for the motion responses of the offshore wind turbine (OWT). The hydro-elastic similarity is suggested for the dynamic model test of an integrated OWT which can ensure the similarities of the hydrodynamic loads and dynamic characteristics of the structure. Meanwhile, the Newton similarity is applied to scale the aerodynamic loads of the OWT. Then, the influence of wind and wave loads on the seismic responses of the pentapod OWT is disclosed. The fully coupled numerical model of OWT under seismic, wind and wave loads is derived and established in FAST v8, and the coupling characteristics of the structural responses under such cases are discovered. Meanwhile, the limitations of the mechanical shutdown procedures on the mitigation of seismic responses of OWT are proved. Further, the effectiveness of the tuned mass damper (TMD) is evaluated based on the control of the motion of OWT under combined seismic cases.
- Publication
Journal of Dalian University of Technology / Dalian Ligong Daxue Xuebao, 2020, Vol 60, Issue 5, p514
- ISSN
1000-8608
- Publication type
Academic Journal
- DOI
10.7511/dllgxb202005008