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CSME 2026/04
Volume 47 No.2 : 103-112
DOI:10.29979/JCSME.202604_47(2).0001  
Design Improvement and Strength Analysis of a Pin Lock Structure for Wind Turbine Hub

Rong-Mao Lee Rong-Mao Leea, Jien-Chen Chen Jien-Chen Chenb, Nelson T. Corbita Jr Nelson T. Corbita Jrc and Jui-Hung Liu Jui-Hung Liua
aAssociate Professor, Department of Intelligent Automation Engineering, National Chin-Yi University of Technology, Taichung, Taiwan 411030
bSenior Engineer, Mechanical and Mechatronics Systems Research Lab, Industrial Technology Research Institute, Hsinchu, Taiwan 310401
cFaculty, Mechanical Engineering Department, University of Science and Technology of Southern Philippines, Cagayan de Oro City, Philippines 9000


Abstract: This study presents an analysis and design im-provement of the hub pin lock structure in a 2 MW wind turbine, addressing a critical malfunction caused by prolonged exposure to extreme wind conditions over 15 years of operation. The redesign focuses on enhancing the durability and reliability of the pin sup-port base, using 3D modeling, structural strength anal-ysis, and fatigue analysis based on Miner’s rule. The redesigned pin lock was evaluated for its ability to withstand cyclic loading conditions through load sim-ulations under various wind scenarios. The cumulative fatigue damage was calculated, confirming that the structure remains well below the failure threshold, ensuring long-term performance. The proposed design reduces wind turbine downtime and maintenance costs, offering significant implications for improving the reliability of wind turbine components and extending their operational life.

Keywords:  Wind Turbine, Operation and Maintenance, Pin Lock, Load Analysis.

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© 2026  CSME , ISSN 0257-9731 





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