The purpose of this paper is to report the results of a recent project of complex tests on the survival of structural health monitoring (SHM) technology with piezo wafer active sensors (PWAS) and electromechanical impedance spectroscopy (EMIS) at simulating the concomitant action of harsh conditions of outer space: extreme temperatures, radiations, vacuum.

    Design/methodology/approach

    The tests were conducted on PWAS, consists in adhesive and aluminium discs as structural specimens, with PWAS bonded on them. The substantiating of PWAS-EMIS-based SHM technique consists the fact that real part of the PWAS electromechanical impedance spectrum follows with fidelity the resonance behaviour of the structure vibrating under the PWAS excitation. This EMIS signature is very sensitive to any structural changes and, on this basis, can be monitored the onset and progress of structural damages such as fatigue, cracks, corrosion, etc.

    Findings

    The conclusion of the tests is that the cumulative impact of severe conditions of temperature, radiation and vacuum has not generated decommissioning of sensors or adhesive, which would have meant the compromise of the methodology. A second important outcome is linked to the capability of this methodology to distinguish between the damages of mechanical origin and the false ones, caused by environmental conditions, which are, basically, harmless.

    Originality/value

    The question of transfer of PWAS-EMIS-based SHM technology to space vehicles and applications received, as a novelty, a first and encouraging response.


    Zugriff

    Zugriff prüfen

    Verfügbarkeit in meiner Bibliothek prüfen

    Bestellung bei Subito €


    Exportieren, teilen und zitieren



    Titel :

    Towards structural health monitoring of space vehicles


    Beteiligte:
    Ursu, Ioan (Autor:in) / Enciu, Daniela (Autor:in) / Toader, Adrian (Autor:in)

    Erschienen in:

    Erscheinungsdatum :

    2017-10-02


    Format / Umfang :

    8 pages




    Medientyp :

    Aufsatz (Zeitschrift)


    Format :

    Elektronische Ressource


    Sprache :

    Englisch




    The role of structural health monitoring for future air vehicles

    Derriso, Mark M. / Olson, Steven E. | Tema Archiv | 2006


    The Role of Structural Health Monitoring for Future Air Vehicles

    Derriso, Mark / Olson, Steven | AIAA | 2006


    Structural health monitoring applications for space structures

    Tansel, I.N. / Chen, P. / Wang, X. et al. | IEEE | 2005



    Digital-Twins of composite aerostructures towards Structural Health Monitoring

    Milanoski, Dimitrios P. / Galanopoulos, Georgios K. / Loutas, Theodoros H. | IEEE | 2021