Effects of aerodynamic excitations on the dynamic behavior of helical gear system

Purpose - The purpose of this paper is to study the effects of aerodynamic excitations on the dynamic behavior of a helical two-stage gear system.Design methodology approach - The methodology consists of developing a wind turbine model including a helical two-stage gear train having 21 DOFs.Findings...

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Bibliographic Details
Published in:Multidiscipline modeling in materials and structures 2012-01, Vol.8 (2), p.178-196
Main Authors: Abboudi, Kamel, Walha, Lassaad, Driss, Yassine, Maatar, Mohamed, Haddar, Mohamed
Format: Article
Language:English
Subjects:
Aerodynamics
Dynamical systems
Dynamics
Excitation
Helical
Mathematical models
Methodology
Wind turbines
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Summary:Purpose - The purpose of this paper is to study the effects of aerodynamic excitations on the dynamic behavior of a helical two-stage gear system.Design methodology approach - The methodology consists of developing a wind turbine model including a helical two-stage gear train having 21 DOFs.Findings - The results of this paper show that the dynamic behavior of the speed-up gearbox inside the wind turbine is affected by various degrees of flexibility at different frequencies.Originality value - The aerodynamic forces are calculated by two main methods, the first is the actuator disc theory and the second is the Blade-Element Method. Some correction functions are applied, such as the tip-root loss functions and the Glauert correction factor. The convergence of the induction factors permits to increase the precision of predictions. Finally, the generator side is modeled by a simplified electric schematic based on steady state model.
ISSN:1573-6105
1573-6113
DOI:10.1108/15736101211251202