Abstract
This paper presents the results of dynamic characterization and preparation of a full-scale fatigue test of a 9 m CX-100 blade. Sensors and actuators utilized include accelerometers and piezoelectric sensors. To dynamically characterize a 9 m CX-100 blade, full scale modal analyses were completed with varying boundary conditions and blade orientations. Also, multi-scale sensing damage detection techniques were explored; high frequency active-sensing was used in identifying fatigue damage initiation, while low frequency passive-sensing was used in assessing damage progression. Ultimately, high and low frequency response functions, wave propagations, and sensor diagnostic methods were utilized to monitor and analyze the condition of the wind turbine blade under fatigue loading.
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Dyas, S.J., Scheidler, J., Taylor, S.G., Farinholt, K., Park, G. (2012). Structural Health Monitoring of Wind Turbine Blades Under Fatigue Loads. In: Mayes, R., et al. Topics in Experimental Dynamics Substructuring and Wind Turbine Dynamics, Volume 2. Conference Proceedings of the Society for Experimental Mechanics Series. Springer, New York, NY. https://doi.org/10.1007/978-1-4614-2422-2_22
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DOI: https://doi.org/10.1007/978-1-4614-2422-2_22
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