A flight envelope protection method based on potential functions

Donglei Sun, Xiao Li, Hamidreza Jafarnejadsani, Naira Hovakimyan

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

Abstract

This paper presents a flight envelope protection method for aircraft. Specifically, a bank angle protection strategy is proposed and analyzed using potential functions and gradient descent algorithm. In the proposed method, the flight envelope limit is treated as an obstacle in the state-space, and a repulsive potential function is defined in the proximity to this obstacle, generating a repellent control command to prevent the state from violating the limit. One advantage of this method is that no prediction of limit violation is required, and only limited information about the system dynamics is needed to tune the algorithm. The designer can balance protection performance and pilot authority by changing the triggering point of the algorithm. Exponential stability is proved for the closed-loop system and simulation example of bank angle protection of a linearized aircraft (NASA's Transport Class) model is provided to verify the effectiveness of the algorithm.

Original languageEnglish (US)
Title of host publicationAIAA Guidance, Navigation, and Control Conference, 2017
PublisherAmerican Institute of Aeronautics and Astronautics Inc, AIAA
ISBN (Print)9781624104503
StatePublished - Jan 1 2017
EventAIAA Guidance, Navigation, and Control Conference, 2017 - Grapevine, United States
Duration: Jan 9 2017Jan 13 2017

Publication series

NameAIAA Guidance, Navigation, and Control Conference, 2017

Other

OtherAIAA Guidance, Navigation, and Control Conference, 2017
CountryUnited States
CityGrapevine
Period1/9/171/13/17

Fingerprint

Flight envelopes
Aircraft
Asymptotic stability
Closed loop systems
NASA
Dynamical systems

ASJC Scopus subject areas

  • Aerospace Engineering
  • Control and Systems Engineering
  • Electrical and Electronic Engineering

Cite this

Sun, D., Li, X., Jafarnejadsani, H., & Hovakimyan, N. (2017). A flight envelope protection method based on potential functions. In AIAA Guidance, Navigation, and Control Conference, 2017 (AIAA Guidance, Navigation, and Control Conference, 2017). American Institute of Aeronautics and Astronautics Inc, AIAA.

A flight envelope protection method based on potential functions. / Sun, Donglei; Li, Xiao; Jafarnejadsani, Hamidreza; Hovakimyan, Naira.

AIAA Guidance, Navigation, and Control Conference, 2017. American Institute of Aeronautics and Astronautics Inc, AIAA, 2017. (AIAA Guidance, Navigation, and Control Conference, 2017).

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

Sun, D, Li, X, Jafarnejadsani, H & Hovakimyan, N 2017, A flight envelope protection method based on potential functions. in AIAA Guidance, Navigation, and Control Conference, 2017. AIAA Guidance, Navigation, and Control Conference, 2017, American Institute of Aeronautics and Astronautics Inc, AIAA, AIAA Guidance, Navigation, and Control Conference, 2017, Grapevine, United States, 1/9/17.
Sun D, Li X, Jafarnejadsani H, Hovakimyan N. A flight envelope protection method based on potential functions. In AIAA Guidance, Navigation, and Control Conference, 2017. American Institute of Aeronautics and Astronautics Inc, AIAA. 2017. (AIAA Guidance, Navigation, and Control Conference, 2017).
Sun, Donglei ; Li, Xiao ; Jafarnejadsani, Hamidreza ; Hovakimyan, Naira. / A flight envelope protection method based on potential functions. AIAA Guidance, Navigation, and Control Conference, 2017. American Institute of Aeronautics and Astronautics Inc, AIAA, 2017. (AIAA Guidance, Navigation, and Control Conference, 2017).
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