Comparison and analysis of pilot-induced oscillation characteristics from flight test and ground-based simulation

摘要

The usual metrics for characterizing pilot-induced oscillation (PIO) are the Cooper-Harper pilot opinion rating, PIO ratings scales, pilot comments, and task performance. ^This paper examines the phase lag between pilot input and aircraft response, as well as the PIO frequencies and magnitudes in ground-simulation and flight data. ^The power spectra content of pilot signatures are also evaluated to understand pilot behavior during PIO. ^This is done in hopes of achieving a better understanding of pilot adaptation to ground simulation, which in turn may help to better structure the procedures for PIO testing and thus improve our ability to predict flight results. ^(Author)