Journal
MATERIALS AND MANUFACTURING PROCESSES
Volume 25, Issue 4, Pages 268-271Publisher
TAYLOR & FRANCIS INC
DOI: 10.1080/10426910903426448
Keywords
Fiber Bragg grating sensor; Impact monitoring; Structural health monitoring system; Wind turbine blade
Funding
- National Science Council [NSC96-2628-E-002-223-MY3]
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An impact monitoring system using an array of fibre Bragg grating (FBG) sensors has been established on a wind turbine blade. The effect of sensor layout on detection capability has been investigated. The possibility to identify the location of an impact is also discussed. This preliminary work may shed some light on how to establish an optimal monitoring system with a minimum number of sensors while achieving an acceptable sensitivity and coverage. With such a system, the corresponding strain history and occurrence of local damage can be monitored, thus helping to narrow down the scope for detailed examination during an overhaul and enabling the integrity of a wind turbine blade to be more reliably assessed.
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