Print Email Facebook Twitter Systematic multiparameter design methodology for an ultrasonic health monitoring system for full-scale composite aircraft primary structures Title Systematic multiparameter design methodology for an ultrasonic health monitoring system for full-scale composite aircraft primary structures Author Ochôa, Pedro (TU Delft Structural Integrity & Composites) Groves, R.M. (TU Delft Structural Integrity & Composites) Benedictus, R. (TU Delft Aerospace Structures & Materials) Department Aerospace Structures & Materials Date 2019 Abstract The successful utilization of guided wave-based structural health monitoring (SHM) for detailed quantitative diagnostic of damage in composite aircraft primary structures depends on the excitation frequency, geometry, and positioning of the piezoelectric transducers. This study proposes a novel methodology to consistently define those parameters, which is not tuned for a single damage size, does not resort to unrealistic usage of pure guided wave modes, and is applicable to a generic full-scale composite aircraft primary structure. The proposed criteria for designing the piezoelectric transducer network are based on sensor output, coupled electro-mechanical response of the transducer-structure assembly, energy transfer from the bonded piezoelectric transducer to the structure, wavefront coverage of the monitored area, and measurement equipment capabilities. The design methodology was successfully validated by testing the capabilities of the SHM system for the diagnostic of barely visible impact damage of different severities, applied in different locations on a full-scale thermoplastic composite aircraft stiffened panel. Subject composite aircraft primary structureexperimental validationstructural health monitoringsystem designultrasonic guided wave To reference this document use: http://resolver.tudelft.nl/uuid:7246321e-d09e-4ebe-b7e8-831927bec6a8 DOI https://doi.org/10.1002/stc.2340 ISSN 1545-2255 Source Structural Control and Health Monitoring: the bulletin of ACS, 26 (5) Part of collection Institutional Repository Document type journal article Rights © 2019 Pedro Ochôa, R.M. Groves, R. Benedictus Files PDF Och_a_et_al_2019_Structur ... toring.pdf 14.49 MB Close viewer /islandora/object/uuid:7246321e-d09e-4ebe-b7e8-831927bec6a8/datastream/OBJ/view