title: Airborne Transducer Integrity under Operational Environment for Structural Health Monitoring.
abstract: This paper investigates the robustness of permanently mounted transducers used in airborne structural health monitoring systems, when exposed to the operational environment. Typical airliners operate in a range of conditions, hence, structural health monitoring (SHM) transducer robustness and integrity must be demonstrated for these environments. A set of extreme temperature, altitude and vibration environment test profiles are developed using the existing Radio Technical Commission for Aeronautics (RTCA)/DO-160 test methods. Commercially available transducers and manufactured versions bonded to carbon fibre reinforced polymer (CFRP) composite materials are tested. It was found that the DuraAct transducer is robust to environmental conditions tested, while the other transducer types degrade under the same conditions.
authors.affiliation: Department of Aeronautics Imperial College, London SW7 2AZ, UK. msv09@imperial.ac.uk.
authors.forename: Mohammad Saleh
authors.initials: MS
authors.lastname: Salmanpour
authors.affiliation: Department of Aeronautics Imperial College, London SW7 2AZ, UK. z.sharif-khodaei@imperial.ac.uk.
authors.forename: Zahra
authors.initials: Z
authors.lastname: Sharif Khodaei
authors.affiliation: Department of Aeronautics Imperial College, London SW7 2AZ, UK. m.h.aliabadi@imperial.ac.uk.
authors.forename: Mohammad Hossein
authors.initials: MH
authors.lastname: Aliabadi
mesh_terms: D061725:Accelerometry; D000401:Aircraft; D000531:Altitude; D004777:Environment; D008991:Monitoring, Physiologic / Q000295:instrumentation*; D013696:Temperature; D014159:Transducers; D014732:Vibration
keywords: Lamb wave; composites; non-destructive testing; temperature; vibration