1990 · 13 citations · 2 references
EngineeringAerospace EngineeringSystems EngineeringAircraft DesignFlight DynamicsFlight MechanicsAircraft StabilityFailover MechanismsFlight SimulationReliabilityReliability ModelingReliable System DesignAircraft ReliabilityAirworthinessControl System ReliabilityDigital Flight Control SystemsFlight Control SystemsOperational TransientsPilot Scale ValidationTransient Reliability Analysis
A pilot rating scale was developed to describe the effects of transients in helicopter flight-control systems on safety-of-flight and on pilot recovery action. The scale was applied to the evaluation of hardovers that could potentially occur in the digital flight-control system being designed for a variable-stability UH-60A research helicopter. Tests were conducted in a large moving-base simulator and in flight. The results of the investigation were combined with existing airworthiness criteria to determine quantitative reliability design goals for the control system.
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