Ground Resonance Testing of 500 kW Wind Turbine GFRP Blade

Satyanarayana, CN and Shivaprasad, MV and Shivaprasad, S and Jayaraman, M and Veera Sesha Kumar, C and Venkatasubramanyam, DV (2009) Ground Resonance Testing of 500 kW Wind Turbine GFRP Blade. Project Report. National Aerospace Laboratories, National Aerospace Laboratories.

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Abstract

Ground Resonance Test is essential to determine the dynamic characteristics, such as Natural Frequencies, Modal Damping, Mode shapes and MAC Matrix. The 500 kW Wind turbine GFRP blade was subjected to GRT in order to find the dynamic characteristics experimentally. The wind turbine GFRP blade was rigidly attached to the static test rig in order to simulate the cantilever boundary condition. SISO test technique was used to conduct the test. Fixed response and roving excitation methodology was employed for making measurement. Input force and responses were measured using SCADAS III hardware and Test. Lab software. The test results were compared with the analytical results. Test configuration, test procedure and results are documented.

Item Type: Monograph (Project Report)
Uncontrolled Keywords: Wind Turbine, Composite GFRP Blade, GRT, Frequency, Modal Damping, Bending mode, Torsion Mode, MAC, Mode shapes, FRF's
Subjects: RENEWABLE ENERGY > Wind Energy
ENGINEERING > Structural Mechanics
Depositing User: C Veera Sesha Kumar
Date Deposited: 26 Mar 2013 09:09
Last Modified: 26 Mar 2013 09:09
URI: http://nal-ir.nal.res.in/id/eprint/11548

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