To reduce energy consumption, emissions, and noise, NASA is exploring the use of high aspect ratio wings on subsonic aircraft. Because high aspect ratio wings are susceptible to flutter events, NASA is also investigating methods of flutter detection and suppression. In support of that work a new remote, non-contact method for measuring flutter-induced vibrations has been developed. The new sensing scheme utilizes a microwave reflectometer to monitor the reflected response from an aeroelastic structure to ultimately characterize structural vibrations. To demonstrate the ability of microwaves to detect flutter vibrations, a carbon fiber-reinforced polymer (CFRP) composite panel was vibrated at various frequencies from 1Hz to 130Hz. The reflectometer response was found to closely resemble the sinusoidal response as measured with an accelerometer up to 100 Hz. The data presented demonstrate that microwaves can be used to measure flutter-induced aircraft vibrations.


    Zugriff

    Zugriff über TIB

    Verfügbarkeit in meiner Bibliothek prüfen


    Exportieren, teilen und zitieren



    Titel :

    Passive Wireless Vibration Sensing for Measuring Aerospace Structural Flutter


    Beteiligte:

    Kongress:

    2017 IEEE International Conference on Wireless for Space and Extreme Environments (WiSEE 2017) ; 2017 ; Montreal, Quebec, Canada


    Erscheinungsdatum :

    2017-10-10


    Medientyp :

    Aufsatz (Konferenz)


    Format :

    Keine Angabe


    Sprache :

    Englisch





    Passive flutter suppression

    INGRAM, C. W. / SZWARC, W. J. | AIAA | 1976



    Experimental Passive Flutter Suppression Using a Linear Tuned Vibration Absorber

    Verstraelen, Edouard / Habib, Giuseppe / Kerschen, Gaetan et al. | AIAA | 2016