Assessing joint integrity of a lug assembly using piezoelectric active sensors

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This paper is a report of an investigation into tracking and monitoring the integrity of bolted joints using piezoelectric active sensors. The target application of this study is a fitting lug assembly of unmanned aerial vehicles (UAVs), where a composite wing is mounted to a UAV fuselage. The structural health monitoring methods deployed in this study are time-series analysis and high-frequency response functions measured by piezoelectric active sensors. Different types of simulated damage are introduced into the structure, and the capability of each technique is examined. Practical implementation issues, including temperature changes, are also considered in this study. The results collected from the tests show that piezoelectric active sensors and associated signal processing tools can be efficiently used for identifying joint failure modes of a lug assembly.
Publisher
WILEY-BLACKWELL
Issue Date
2012-11
Language
English
Article Type
Article
Keywords

DAMAGE DETECTION; HEALTH; WAVES

Citation

STRUCTURAL CONTROL & HEALTH MONITORING, v.19, no.7, pp.621 - 631

ISSN
1545-2255
DOI
10.1002/stc.1507
URI
http://hdl.handle.net/10203/202824
Appears in Collection
AE-Journal Papers(저널논문)
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