Investigating Main and High-Speed Shaft Bearing Reliability through Uptower Testing [electronic resource]

• Ngôn ngữ: eng
• Ký hiệu phân loại: 621.812 Power and speed control devices
• Thông tin xuất bản: Washington, D.C. : Oak Ridge, Tenn. : United States. Dept. of Energy. Office of Energy Efficiency and Renewable Energy ; Distributed by the Office of Scientific and Technical Information, U.S. Dept. of Energy, 2018
• Mô tả vật lý: Size: 45 MB : , digital, PDF file.
• Bộ sưu tập: Metadata
• ID: 258144
• Chủ đề: 1. 17 wind energy; 2. 42 engineering; 3. Drivetrain; 4. Wind energy; 5. Wind turbine

Tóm tắt

 The most prevalent failure modes in wind turbine drivetrains are main bearing failures stemming from micropitting, white etching or axial cracks in gearbox bearings, and generator bearing failures. These failures are neither well understood nor accounted for in design standards
  consequently, the mitigation strategies being developed and fielded may only partially address the physics of failure and can take years to assess. The U.S. Department of Energy continues to support research programs to investigate the influence of rolling element sliding on the formation of bearing axial cracks and main bearing micropitting.