This paper presents a wavelet scalogram-based metric, which identifies pilot-induced oscillations (PIOs) from flight and when they have occurred. The method considers the time-varying peak pilot input power as a function of the controlled-element phase at the frequency of the peak power, all of which are elements of the defined PIO signature. A flight-test database generated in the evaluation of fixed-wing PIO mitigation concepts is first used to assess the utility of the proposed approach. Further independent evaluation and validation using a previously unassessed aircraft configuration and evaluation maneuvers are made using data generated from pilot-in-the-loop simulations of the XV-15 at the University of Liverpool’s HELIFLIGHT simulation facility. The results of the assessments found that the new metric was successful at identifying correctly both PIO and non-PIO cases.


    Access

    Check access

    Check availability in my library

    Order at Subito €


    Export, share and cite



    Title :

    Assessment of a Scalogram-Based Pilot-Induced Oscillation Metric with Flight-Test and Simulation Data‡‡



    Published in:

    Publication date :

    2020-09-30


    Size :

    15 pages




    Type of media :

    Article (Journal)


    Type of material :

    Electronic Resource


    Language :

    English




    Assessment of a Scalogram-Based PIO Metric with Flight Test Data

    Klyde, David H. / Schulze, Philip C. / Mello, Ricardo S. et al. | AIAA | 2017


    Further Assessment of a Scalogram-Based PIO Metric using University of Liverpool Tilt Rotor Simulation Data

    Cameron, Neil / White, Mark D. / Cunliffe, Christopher et al. | AIAA | 2018


    Further Assessment of a Scalogram-Based PIO Metric using University of Liverpool Tilt Rotor Simulation Data (AIAA 2018-1017)

    Cameron, Neil / White, Mark D. / Cunliffe, Christopher et al. | British Library Conference Proceedings | 2018


    Flight Test Experience with Pilot-Induced-Oscillation Suppression Filters

    M. F. Shafer / R. E. Smith / J. F. Stewart et al. | NTIS | 1984


    Flight test experience with pilot-induced-oscillation suppressor filters

    Shafer, M. F. / Smith, R. E. / Stewart, J. F. et al. | NTRS | 1983