Title :
The strength analysis of the Direct Drive Wind Turbine´s support shaft
Author_Institution :
Design Assessment Centre China Classification Soc. Certification Co., Beijing, China
Abstract :
The support shaft in the Direct Drive Wind Turbine is an important supporting component of the wind turbine and its performance directly affects the safety of turbine. Through combining characteristics of the Direct Drive Wind Turbine´s support shaft with finite element method and engineering method, this paper analyzes the support shaft finite element of static and modal fatigue life. Through the static analysis of the support shaft, the deformation and stress-strain results show that the maximum stress is lower than the allowable stress, and the support shaft meets the static strength safety requirements; through fatigue life analysis, the maximum fatigue stress is lower than the theoretical fatigue limit and meets the fatigue strength requirements of the support shaft. The results provide a theoretical basis of improvement of the design and program finalization.
Keywords :
deformation; design engineering; drives; fatigue; finite element analysis; life testing; shafts; stress analysis; stress-strain relations; wind turbines; allowable stress; deformation; direct drive wind turbine support shaft; engineering method; finite element method; maximum fatigue stress; modal fatigue life analysis; static fatigue life analysis; static strength safety requirements; stress-strain results; supporting component; wind turbine safety; Fatigue; Finite element analysis; Force; Safety; Shafts; Stress; Wind turbines; fatigue life; finite element analysis; the support shaft; wind turbines;
Conference_Titel :
Materials for Renewable Energy and Environment (ICMREE), 2013 International Conference on
Conference_Location :
Chengdu
Print_ISBN :
978-1-4799-3335-8
DOI :
10.1109/ICMREE.2013.6893688
