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Dynamic Response Analysis of 2.5MW Wind Turbine Gearbox with Flexible Pins
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 Title & Authors
Dynamic Response Analysis of 2.5MW Wind Turbine Gearbox with Flexible Pins
Cho, Jin-Rae; Jeong, Ki-Yong;
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This study is concerned with the numerical investigation of dynamic characteristics of 2.5MW-class wind turbine gearbox in which the misalignment improvement of plenary gear shafts by the flexible pins and the dynamic impact response are analyzed by the finite element method. The tooth contact between gears is modelled using the line element having the equivalent tooth stiffness and the contact ratio to accurately and effectively reflect the load transmission in the internal complex gear system. The equivalent tooth stiffness is calculated by utilizing the tooth deformation analysis and the impulse torque is applied to the input shaft for the dynamics response characteristic analysis. Through the numerical experiments, the equivalent tooth stiffness model was validated and the misalignment improvement of planetary gear shafts was confirmed from the comparison with the cases of fixed shafts at one and both ends.
2.5MW wind turbine;gearbox;planetary gear set;gear shaft misalignment;flexible pin;shaft tilting angle;equivalent tooth stiffness coefficient;dynamic response analysis;
 Cited by
Jeong, K.Y., Lee, D.Y., Choi, E.H., Cho, J.R., Lim, O.K. (2012) Optimum Shape Design of Gearbox Housing for 5MW Wind Turbine, J. Comput. Struct. Eng. Inst. Korea, 25(3), pp.237-243. crossref(new window)

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Cho, J.R., Jeong, K.Y., Park, M.H., Shin, D.S., Lim, O.K., Park, N.G. (2013) Finite Element Structural Analysis of Wind Turbine Gearbox Considering Tooth Contact of Internal Gear System, J. Mech. Sci. Technol., 27(7), pp.2053-2059. crossref(new window)

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Cho, J.R., Jeong, K.Y., Park, M.H., Park, N.G. (2015) Dynamic Response Analysis of Wind Turbine Gearbox Using Simplified Local Tooth Stiffness of Internal Gear System, Computational and Nonlinear Dynamics, ASME Trans., 10, 041001-1-9. crossref(new window)

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