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http://dx.doi.org/10.9725/kstle.2011.27.4.204

Design for Yaw Brake System in Wind Turbine  

Park, Jin-Hwan (Sangsin Brake)
Park, Sang-Shin (School of Mechanical Engineering, Yeungnam University)
Yoon, Yong-Ik (Sangsin Brake)
Yoo, Chang-Hee (Sangsin Brake)
Hwang, Jung-Gyu (Sangsin Brake)
Publication Information
Tribology and Lubricants / v.27, no.4, 2011 , pp. 204-208 More about this Journal
Abstract
Yaw brakes are used in wind turbines to control the orientation of blades to be perpendicular to the wind. These devices are very important machine elements because they are closely related to the overall efficiency of wind turbines. One unit of yaw brakes is composed of a friction pad and a caliper. In this study, a tangential force between the friction pad and the disk is calculated when the brake is acting in 750 kW wind turbine. Then, stress distribution and the deformation of the caliper are calculated using a finite element analysis. An experimental equipment is also developed to verify the exactness of calculated results. The analytical and experimental results are presented and discussed.
Keywords
wind turbine; brake; yaw system; structural analysis;
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