Flight evaluation of augmented controls for approach and landing of powered-lift aircraft

Franklin, James A.; Hynes, Charles S.; Hardy, Gordon H.; Martin, James L.; Innis, R. C.

doi:10.2514/6.1985-1944

Cited by 4 publications

(1 citation statement)

References 3 publications

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“…This control architecture is a variant of the integrated flight-propulsion control design documented in Ref. 11. The Stability and Control Augmentation System is an adaptive dynamic inversion flight control system developed at NASA Ames Research Center.…”

Section: A Simulation Resultsmentioning

confidence: 99%

Adaptive Data-based Predictive Control for Short Take-off and Landing (STOL) Aircraft

Barlow

Acosta

Phan

2009

AIAA Infotech@Aerospace Conference

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Data-based Predictive Control is an emerging control method that stems from Model Predictive Control (MPC). MPC computes current control action based on a prediction of the system output a number of time steps into the future and is generally derived from a known model of the system. Data-based predictive control has the advantage of deriving predictive models and controller gains from inputoutput data. Thus, a controller can be designed from the outputs of complex simulation code or a physical system where no explicit model exists. If the output data happens to be corrupted by periodic disturbances, the designed controller will also have the built-in ability to reject these disturbances without the need to know them. When data-based predictive control is implemented online, it becomes a version of adaptive control. The characteristics of adaptive data-based predictive control are particularly appropriate for the control of nonlinear and time-varying systems, such as Short Take-off and Landing (STOL) aircraft. STOL is a capability of interest to NASA because conceptual Cruise Efficient Short Take-off and Landing (CESTOL) transport aircraft offer the ability to reduce congestion in the terminal area by utilizing existing shorter runways at airports, as well as to lower community noise by flying steep approach and climb-out patterns that reduce the noise footprint of the aircraft. In this study, adaptive data-based predictive control is implemented as an integrated flight-propulsion controller for the outer-loop control of a CESTOL-type aircraft. Results show that the controller successfully tracks velocity while attempting to maintain a constant flight path angle, using longitudinal command, thrust and flap setting as the control inputs.

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Section: A Simulation Resultsmentioning

confidence: 99%

Adaptive Data-based Predictive Control for Short Take-off and Landing (STOL) Aircraft

Barlow

Acosta

Phan

2009

AIAA Infotech@Aerospace Conference

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Quiet Short-Haul Research Aircraft – A Summary of Flight Research Since 1981

Riddle

Stevens

Eppel

1987

SAE Technical Paper Series

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Integrated Control and Display Research for Transition and Vertical Flight on the NASA V/STOL Research Aircraft (VSRA)

Foster

Moralez

Franklin

et al. 1987

SAE Technical Paper Series

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Results of a substantial body of ground-based simulation experiments indicate that a high degree of precision of operation for recovery aboard small ships in heavy seas and low visibility with acceptable levels of effort by the pilot can be achieved by integrating the aircraft flight and propulsion controls. The availability of digital fly-by-wire controls makes it feasible to implement an integrated control design to achieve and demonstrate in flight the operational benefits promised by the simulation experience. It remains to validate these systems concepts in flight to establish their value for advanced short takeoff vertical landing (STOVL) aircraft designs. This paper summarizes analytical studies and simulation experiments that provide a basis for the flight research program that will develop and validate critical technologies for advanced STOVL aircraft through the development and evaluation of advanced, integrated control and display concepts and lays out the plan for the flight program that will be conducted on NASA's V/STOL Research Aircraft (VSRA).

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Flight evaluation of augmented controls for approach and landing of powered-lift aircraft

Cited by 4 publications

References 3 publications

Adaptive Data-based Predictive Control for Short Take-off and Landing (STOL) Aircraft

Adaptive Data-based Predictive Control for Short Take-off and Landing (STOL) Aircraft

Quiet Short-Haul Research Aircraft – A Summary of Flight Research Since 1981

Integrated Control and Display Research for Transition and Vertical Flight on the NASA V/STOL Research Aircraft (VSRA)

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