Journal
SMART MATERIALS AND STRUCTURES
Volume 23, Issue 10, Pages -Publisher
IOP PUBLISHING LTD
DOI: 10.1088/0964-1726/23/10/105005
Keywords
wind turbine blade; damage detection; active sensing; energy; polar analysis
Funding
- Norman Hackerman Advanced Research Program (NHARP) grant from the Texas Higher Education Coordinate Board [01980]
- US National Science Foundation [0832089]
- Division Of Computer and Network Systems
- Direct For Computer & Info Scie & Enginr [0832089] Funding Source: National Science Foundation
Ask authors/readers for more resources
The wind energy sector is one of the fastest growing parts of the clean energy industry. As the wind energy sector grows, so does an increasing concern for the damage detection of wind turbine blades. This paper proposes an active sensing approach by utilizing piezoceramic transducers as actuators and sensors. The influence of the crack quantity, location, length and depth on the wave propagation was experimentally studied. Sweep sine signals ranging from 1 khz to 50 khz were used as input signals for active sensing. The change in the energy that propagated through the cracks was verified as feasible in detecting crack-related damage. An innovative polar plot analysis method based on Fast Fourier transform was developed to compare the minuscule difference between the damage signals and the baseline signal. The polar plot was able to make apparent differences in both the magnitude and the phase of the signals, which could be correlated to crack depth and plane geometry, respectively, based on the observation of the damage.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available