Model Fidelity Study of Dynamic Transient Loads in a Wind Turbine Gearbox [electronic resource] : Preprint

• Ngôn ngữ: eng
• Ký hiệu phân loại: 621.851 Applied physics
• Thông tin xuất bản: Golden, Colo. : Oak Ridge, Tenn. : National Renewable Energy Laboratory (U.S.) ; Distributed by the Office of Scientific and Technical Information, U.S. Dept. of Energy, 2013
• Mô tả vật lý: Size: 14 pp. : , digital, PDF file.
• Bộ sưu tập: Metadata
• ID: 258966
• Chủ đề: 1. 17 wind energy; 2. Field-test measurements; 3. Multi-body method; 4. Transient events; 5. Wind turbine gearbox

Tóm tắt

Transient events cause high loads in the drivetrain components so measuring and calculating these loads can improve confidence in drivetrain design. This paper studies the Gearbox Reliability Collaborative 750kW wind turbine gearbox response during transient events using a combined experimental and modeling approach. The transient events include emergency shut-downs and start-ups measured during a field testing period in 2009. The drivetrain model is established in the multibody simulation tool Simpack. A detailed study of modeling fidelity required for accurate load prediction is performed and results are compared against measured loads. A high fidelity model that includes shaft and housing flexibility and accurate bearing stiffnesses is important for the higher-speed stage bearing loads. Each of the transient events has different modeling requirements.