Study of Dynamic Characteristics of 2.5-MW Wind Turbine Gearbox

Title & Authors
Study of Dynamic Characteristics of 2.5-MW Wind Turbine Gearbox
Kimg, Jung-Su; Park, No-Gill; Han, Ki-Bong; Lee, Hyoung-Woo;

Abstract
In this study, a gearbox and blade were modeled in the MASTA program, and the housing and carrier components were modeled using a finite element method. Using substructure synthesis, all the components were combined and used to establish a vibration model of a 2.5-MW wind turbine gearbox. In addition, the safety displacement factor was evaluated using an AGMA data sheet about bearing's outer race for the input shaft and output shaft. As a result, the bearing's outer race for the input shaft, and the radial and axial responses were satisfied by the $\small{1^{st}}$ and $\small{2^{nd}}$ planetary gears and the $\small{3^{nd}}$ helical gear transmission error(TE), respectively. However, the output shaft support bearing's outer race responses were not satisfied with the radial response by the $\small{2^{nd}}$ TE and axial response by the $\small{3^{rd}}$ TE. To reduce the vibration, tooth modification was needed. After profile tooth modification, at the outer race of the output shaft support bearing, the radial response was reduced by approximately $\small{20{\mu}m}$, and the axial response was reduced by approximately $\small{6{\mu}m}$.
Keywords
Wind turbine;Gearbox;Transmission Error;Vibration;
Language
Korean
Cited by
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