Piloted Simulation Evaluation of Damage Tolerant Control for a Coaxial Compound Helicopter

Tom Berger, Anthony Gong, Derek O. Bridges, Nicholas A. Kuhn, D. Grey Hagwood, Joseph F. Horn

Research output: Chapter in Book/Report/Conference proceedingConference contribution

1 Scopus citations

Abstract

Advanced rotorcraft configurations currently being considered for Future Vertical Lift and Advanced Air Mobility applications typically feature redundant control effectors, which bring new opportunities for control design, including the ability to re-allocate control in response to failure or damage. This paper presents the design of damage tolerant control (DTC) for a generic utility-class lift-offset coaxial compound helicopter using weighted pseudo-inverse control allocation. Consideration was given to tip clearance between the upper and lower rotors of the coaxial configuration in the design of DTC. The damage tolerant control was then integrated into full flight envelope control laws, and tested in a piloted simulation using several mission task elements and one operational scenario. Results showed that DTC significantly reduced aircraft coupling in the presence of stuck actuators and maintained sufficient rotor tip separation even during aggressive maneuvers. Furthermore, for all damage cases tested, DTC received better or similar ratings than the baseline case. This work was done in support of the Adaptive Digital Automated Pilotage Technology (ADAPTTM) program which aims to develop a flight control software package to take advantage of redundant controls to improve safety, survivability, and performance for advanced vertical takeoff and landing capable aircraft.

Original languageEnglish (US)
Title of host publicationFORUM 2023 - Vertical Flight Society 79th Annual Forum and Technology Display
PublisherVertical Flight Society
ISBN (Electronic)9781713874799
StatePublished - 2023
Event79th Vertical Flight Society Annual Forum and Technology Display, FORUM 2023 - West Palm Beach, United States
Duration: May 16 2023May 18 2023

Publication series

NameFORUM 2023 - Vertical Flight Society 79th Annual Forum and Technology Display

Conference

Conference79th Vertical Flight Society Annual Forum and Technology Display, FORUM 2023
Country/TerritoryUnited States
CityWest Palm Beach
Period5/16/235/18/23

All Science Journal Classification (ASJC) codes

  • Aerospace Engineering
  • Control and Systems Engineering

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