TY - JOUR
T1 - A damage mechanics approach for lifetime estimation of wind turbine gearbox materials
AU - Jantara Junior, Valter Luiz
AU - Basoalto, Hector
AU - Papaelias, Mayorkinos
PY - 2020/8
Y1 - 2020/8
N2 - Wind turbine gearboxes (WTG) have been suffering from premature failures and rarely live up to their designed lifetime. This study focuses on a better understanding of WTG failures. A finite element model of a gear pair was coupled with a constitutive model to quantify and predict damage, while also testing for different service conditions. A damage mechanics formulation is presented based on a physics-based dislocation slip model. Additionally, an estimation of the remaining useful lifetime of the component was generated, further assisting wind turbine farm operators to move towards the implementation of a truly predictive maintenance approach.
AB - Wind turbine gearboxes (WTG) have been suffering from premature failures and rarely live up to their designed lifetime. This study focuses on a better understanding of WTG failures. A finite element model of a gear pair was coupled with a constitutive model to quantify and predict damage, while also testing for different service conditions. A damage mechanics formulation is presented based on a physics-based dislocation slip model. Additionally, an estimation of the remaining useful lifetime of the component was generated, further assisting wind turbine farm operators to move towards the implementation of a truly predictive maintenance approach.
KW - Constitutive model
KW - Damage
KW - Lifetime estimation
KW - Wind turbine gearbox
UR - http://www.scopus.com/inward/record.url?scp=85087773953&partnerID=8YFLogxK
U2 - 10.1016/j.ijfatigue.2020.105671
DO - 10.1016/j.ijfatigue.2020.105671
M3 - Article
SN - 0142-1123
VL - 137
JO - International Journal of Fatigue
JF - International Journal of Fatigue
M1 - 105671
ER -