Analysis and Optimization of Flexible Supported Drive Train in a Wind Turbine

Li Ming Zheng; Hui Xin Li; Yan Chen

doi:10.4028/www.scientific.net/AMM.130-134.2861

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HomeApplied Mechanics and MaterialsApplied Mechanics and Materials Vols. 130-134Analysis and Optimization of Flexible Supported...

Analysis and Optimization of Flexible Supported Drive Train in a Wind Turbine

Abstract:

Based on conventional drive train model of wind turbines, a planetary gearbox with flexible supporting between gearbox case and nacelle base is considered, and the coupled dynamic model of the drive train system is derived. The gearbox inner vibration performances are evaluated under different flexible parameters by means of dynamic simulation. It is shown that natural frequencies of each shaft are drifting while damping and elastic coefficients changing. Analysis also reveals that the flexible supporting mitigates torsion vibrations of each shaft. To minimizing torsion vibrations, a new searching approach is used to find out optimal parameters of the flexible supporting. Simulation results show that dynamic torque loads of the drive train are reduced, which is useful to wind turbine structure design.

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Periodical:

Applied Mechanics and Materials (Volumes 130-134)

Pages:

2861-2865

DOI:

https://doi.org/10.4028/www.scientific.net/AMM.130-134.2861

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Online since:

October 2011

Authors:

Li Ming Zheng, Hui Xin Li, Yan Chen

Keywords:

Drive-Train, Horizontal Axis Wind Turbine, Planetary Gearbox, Vibration

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