Analytical Investigation of Helicopter Handling Qualities Criterion Using a Structural Pilot Model
نویسنده
چکیده
Previous investigations using flight testing and simulator studies have identified influence of vehicle flight speed and control system sensitivity on the bandwidth-phase delay criterion, not accounted for in the proposed new handling qualities criteria for rotorcraft (ADS-33C). In this paper, the impact of flight speed and control system sensitivity on handling qualities as depicted by the bandwidth-phase delay criterion is studied through analytical means using a linear model of the UH-1H helicopter and a simple structural pilot model. The bandwidth and phase delay parameters as defined in the ADS-33C are computed from the frequency response of the vehicle model. Variations of bandwidth, pilot workload measure and the value of the handling qualities sensitivity function at the crossover frequency with flight speed and control system sensitivity are used to investigate the impact of flight speed and control system sensitivity on the bandwidth-phase delay handling qualities criterion.
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