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Fault-Tolerant Flight Control System Design Based on Classification of Faults
Technical Paper
2020-01-6003
ISSN: 0148-7191, e-ISSN: 2688-3627
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Automotive Technical Papers
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English
Abstract
The major emphasis in Fault-Tolerant Flight Control (FTFC) System is towards Fault Detection and Diagnosis (FDD). FDD is used to isolate the aircraft’s fault and provides information for reconfiguration mechanisms to recover the system from a faulty state. In this paper, based on the classification of faults in actuators and sensors, FTFC system design methods are proposed while retaining the existing flight control system (FCS) architecture. Fault scenarios broadly can be classified as one that can be identified and addressed using a sensor or actuator redundancy management (RM) algorithm and the other that need to be identified using real-time system identification techniques. The reconfiguration carried out for the former is termed as passive FTFC, whereas the latter as active FTFC. In this paper, various methods are proposed for reconfiguration of flight control laws for the known failures such as rate sensor, actuator, air data sensor, and faults/failures detected by the FDD scheme. In the active FTFC, if fault identification is not carried out correctly or if incorrectly interpreted by the reconfiguration mechanism, then it can lead to a complete loss of system stability. Therefore, there is a need to research for reliable fault identification in near real time, especially for the unanticipated fault scenarios. Towards this, a single control surface damage fault scenario arising due to either bird strike or battle damage is considered. Fault detection and identification (FDI) are done with extended Kalman filter (EKF), considering state and observation equations of a lateral and directional axis. The control allocation algorithm is also proposed for faults where a reduction in control surface effectiveness occurs.
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Myala, J., Patel, V., and Singh, G., "Fault-Tolerant Flight Control System Design Based on Classification of Faults," SAE Technical Paper 2020-01-6003, 2020, https://doi.org/10.4271/2020-01-6003.Data Sets - Support Documents
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References
- Edwards , C. , Lombaerts , T. , and Smaili , H. Fault-Tolerant Flight Control—A Benchmark Challenge Berlin Heidelberg Springer-Verlag 2010 https://doi.org/10.1007/978-3-642-11690-2
- 2011 http://www.defense-aerospace.com/article-view/release/128076/video-released-of-damage-tolerance-test-on-uav.html 2020
- Zolghadri , A. , Leberre , H. , Goupil , P. , Gheorghe , A. et al. Parametric Approach to Fault Detection in Aircraft Control Surfaces Journal of Aircraft 53 3 May-June 2016 https://doi.org/10.2514/1.C032596
- Moerder , D.D. , Halyo , N. , Broussard , J. , and Caglayan , A.K. Application of Precomputed Control Laws in a Reconfigurable Aircraft Flight Control System Journal of Guidance, Control and Dynamics 12 3 325 333 1989
- Zhang , Y. and Jiang , J. Bibliographical Review on Reconfigurable Fault-Tolerant Control Systems Proceedings of the 5th IFAC Symposium on Fault Detection, Supervision and Safety for Technical Processes 2003 Washington, DC June 9-11, 2003 265 276
- Sorenson , H.W. Kalman Filtering: Theory and Applications New York IEEE Press 1985
- Klein , V. and Morelli , E.A. Aircraft System Identification—Theory and Practice AIAA Education Series Williamsburg, VA AIAA 2006
- Chetty , S. , and Deodhare , G. Design and Development of Flight Control Laws for LCA Journal of the Aeronautical Society of India 54 142 144 2002
- Myala , J. , Borra , J.K. , and Patel , V.V. Partially Structured LQR Design for Lateral-Directional Flight Control Law Innovations in Power and Advanced Computing Technologies (i-PACT) Vellore, India 2019 1 6 https://doi.org/10.1109/i-PACT44901.2019.8960152
- Osterhuber , R. , Hanel , M. , and Hammon , R. Realization of the Eurofighter 2000 Primary Lateral/Directional Flight Control Laws with Differential PI Algorithm AIAA Guidance, Navigation and control Conference and Exhibit Providence, RI Aug. 16-19, 2004 https://doi.org/10.2514/6.2004-4751
- Jan , R. Airplane Flight Dynamics and Automatic Flight Controls-Part II Lawrence, KS DAR Corporation 2003
- Stevens , B.L. and Lewis , F.L. Aircraft Control and Simulation Second Edition New York John Wiley & Sons 1992
- Kumar , S. Eigen Structure Control Algorithms: Application to Aircraft/Rotorcraft Handling Qualities Design U.K IET-Control Engineering 2011 https://doi.org/10.1049/PBCE074E