TY - GEN
T1 - FEM Analysis of Time-Varying Meshing Stiffness of Wind Turbine Isolated Planetary Gear
AU - Owolabi, Opeoluwa I.
AU - Madushele, Nkosinathi
AU - Adedeji, Paul A.
AU - Olatunji, Obafemi O.
AU - Jen, Tien Chien
N1 - Publisher Copyright:
© 2022 IEEE.
PY - 2022
Y1 - 2022
N2 - The planetary stage of a wind turbine gearbox is very prone to gear failures due to the higher number of gears meshing in this stage. The study of the teeth mesh's internal excitations is crucial in investigating different failure occurrences in the gears. Hence, this study investigates the effects of the highly occurring gear failures (cracks and pits) on the meshing stiffness. A finite element method is utilized to determine the time-varying meshing stiffness (TVMS) of isolated sun-planet pair of a healthy planetary gear model. Two fault severities of cracks and pits with similar magnitudes are induced on a sun gear tooth of the planetary model, and their meshing stiffnesses are simulated. The simulation results of the healthy and faulty models with different faults and severities are compared. The TVMS of the less severe and more severe pit had a maximum deviation of 7.34% and 8.12%, respectively, from the healthy model, while crack had 8.57% and 16.88%, respectively. Also, the rate of damage progression of cracks was estimated to be ten times that of pits in the planetary gear. Therefore, tooth cracks are more dangerous to the smooth operation of wind turbines.
AB - The planetary stage of a wind turbine gearbox is very prone to gear failures due to the higher number of gears meshing in this stage. The study of the teeth mesh's internal excitations is crucial in investigating different failure occurrences in the gears. Hence, this study investigates the effects of the highly occurring gear failures (cracks and pits) on the meshing stiffness. A finite element method is utilized to determine the time-varying meshing stiffness (TVMS) of isolated sun-planet pair of a healthy planetary gear model. Two fault severities of cracks and pits with similar magnitudes are induced on a sun gear tooth of the planetary model, and their meshing stiffnesses are simulated. The simulation results of the healthy and faulty models with different faults and severities are compared. The TVMS of the less severe and more severe pit had a maximum deviation of 7.34% and 8.12%, respectively, from the healthy model, while crack had 8.57% and 16.88%, respectively. Also, the rate of damage progression of cracks was estimated to be ten times that of pits in the planetary gear. Therefore, tooth cracks are more dangerous to the smooth operation of wind turbines.
KW - FEM
KW - cracking
KW - pitting
KW - planetary gear
KW - time-varying meshing stiffness
KW - wind turbine gearbox
UR - http://www.scopus.com/inward/record.url?scp=85136184840&partnerID=8YFLogxK
U2 - 10.1109/ICMIMT55556.2022.9845259
DO - 10.1109/ICMIMT55556.2022.9845259
M3 - Conference contribution
AN - SCOPUS:85136184840
T3 - 2022 IEEE 13th International Conference on Mechanical and Intelligent Manufacturing Technologies, ICMIMT 2022
SP - 47
EP - 52
BT - 2022 IEEE 13th International Conference on Mechanical and Intelligent Manufacturing Technologies, ICMIMT 2022
PB - Institute of Electrical and Electronics Engineers Inc.
T2 - 13th IEEE International Conference on Mechanical and Intelligent Manufacturing Technologies, ICMIMT 2022
Y2 - 25 May 2022 through 27 May 2022
ER -
