Improve wind gears bending performance by means of IGS (Improved gear surface)
2023; Elsevier BV; Volume: 172; Linguagem: Inglês
10.1016/j.ijfatigue.2023.107618
ISSN1879-3452
AutoresRuben Carranza Fernandez, Thomas Tobie, S. Rommel, J. Collazo,
Tópico(s)Fatigue and fracture mechanics
ResumoGearbox power density plays a decisive role in wind energy competitiveness. As wind turbines become larger to reduce the levelized cost of energy (LCOE), bending fatigue plays a higher role in gearbox design. Shot peening (SP) has been introduced frequently as a technique to increase wind gearbox bending capacity, but other techniques, such as root grinding (RG) and superfinishing (SF), remain insufficiently explored. This paper investigates the tooth root bending strength of the case-carburized gears of a normal modulemn = 10 with different root finishing conditions. The results show no relevant influence of SF after SP. In contrast, RG prior to SP shows a potential capacity increase. However, high cycle subsurface failures must be considered for this potential capacity increase.
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