Sandia NRT Blade-0 Laboratory Modal Survey [electronic resource]

• Ngôn ngữ: eng
• Ký hiệu phân loại: 621.45 Wind engines
• 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, 2021
• Mô tả vật lý: Size: 28 p. : , digital, PDF file.
• Bộ sưu tập: Metadata
• ID: 257486
• Chủ đề: 1. 17 wind energy; 2. Modal survey; 3. National rotor testbed; 4. Nrt; 5. Wind turbine blade

Tóm tắt

 Modal testing was performed on the Sandia NRT Blade-0 in building A-60 at NREL/NWTC. Modal testing was intended to identify the fundamental frequencies of the blade. The blade was cantilevered to the A-60 test stand. Fundamental frequencies were identified using impact modal testing. Additional tests included free-decay testing to quantify damping at small displacements. Small-displacement modal testing aims to minimize the influence of aerodynamic damping
  roaming accelerometer impact testing with the development of a dynamic frame model enabled visualization of mode shapes.