Dynamically Studying the Effect of Speed and Loading Increases on a Planetary Gear System for Wind Turbines

JENG, SHIUN CHEN and KUO JAO, HUANG (2014) Dynamically Studying the Effect of Speed and Loading Increases on a Planetary Gear System for Wind Turbines. In: International Conference on Advances in Civil, Structural and Mechanical Engineering - CSME 2014, 26 - 27 August,2014, City University of Hongkong, Hongkong.

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Abstract

Large scale wind turbines must reliably operate in the highly dynamically harsh situation due to varying wind source and grid safety under which the dynamic performance of their transmission lines is especially concerned. Thus, dynamic investigations on the gear system considering the change process of speed and torque are endeavored in order to achieve the strict performance requirements. This study uses a discrete three-dimensional (3D) dynamic model of planetary gear system (PGS) in which gear design parameters can conveniently be incorporated. The model is formulated basing on equivalent springs accounting for the effect of varying meshing stiffness of mating gear or bearing pairs.. In addition, the physical models of bearings, shafts, and housing frames are also included. Then, after assigning torque and speed change in operation, the dynamic transient and steady- state responses of gear system concerning the shifting process of rotation speed and loading are solved. The dynamic contact forces between gear pairs and bearings are resulted. The simulated contact forces of meshing pairs in a PGS compare with the experimental result by NREL. Finally, the dynamic meshing forces under various operation conditions covering the speed and torque increase are analyzed. The result exhibits a larger increase level of speed and load induces server dynamic effect and thus causes a larger maximum contact force.

Item Type: Conference or Workshop Item (Paper)
Uncontrolled Keywords: planetary gear system, dynmaic analysis, speed, loading , mehsing force, wind turbine
Depositing User: Mr. John Steve
Date Deposited: 28 May 2019 09:28
Last Modified: 28 May 2019 09:28
URI: http://publications.theired.org/id/eprint/2892

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