Özet
Within the scope of this thesis, a 6-degree-of-freedom model of a combat aircraft is
created. Apart from the flight dynamics, landing gear dynamics on the ground are also
modeled. After that, a robust autolanding system is designed for the autoland part after
the main landing gears touch the ground until the aircraft stops. For the outer guidance
loop line following guidance algorithms are compared and the linear sliding mode
guidance algorithm is found to be the best in terms of the combination of line tracking
and required control effort. For the inner autopilot loop sliding mode control (SMC) and
proportional integral derivative (PID) control are used. Feedforward gains are also added
for increased disturbance rejection. The designed autoland systems are tested against
crosswind, brake failures, steering failure, and decreased cornering power factor for main
landing gear tires. It has been found that SMC is as robust as PID control for inner loop
applications.
Künye
[1] BBC, "BBC," BBC, 14 January 2018. [Online]. Available:
https://www.bbc.com/news/world-europe-42680238. [Accessed 12 10 2022].
[2] Onderzoeksraad, "Onderzoeksraad," Onderzoeksraad, [Online]. Available:
https://www.onderzoeksraad.nl/en/page/4875/runway-excursion-maastrichtaachen-
airport-11-november-2017. [Accessed 12 10 2022].
[3] IATA, "Runway Safety Accident Analysis Report 2010-2014," IATA, Montreal-
Geneva, 2015.
[4] Stratejik Düşünce Enstitüsü, "sde.org.tr," 11 January 2019. [Online]. Available:
https://www.sde.org.tr/savunma-guvenlik/anka-sin-ilk-siparisinde-teslimatlartamamlandi-
haberi-9091. [Accessed 12 10 2022].
[5] TAI, "www.tai.com.tr," [Online]. Available:
https://www.tusas.com/urunler/iha/yuksek-faydali-yuk-kapasitesi/aksungur.
[Accessed 12 10 2022].
[6] TRT, "Turkish Radio and Television Association," 26 March 2022. [Online].
Available: https://www.trthaber.com/haber/bilim-teknoloji/tusas-malezyadahurjet-
ve-ankayi-sergileyecek-667148.html. [Accessed 12 10 2022].
[7] S. Gudeta and A. Karimoddini, "Design of a Smooth Landing Trajectory
Tracking System for a Fixed-wing Aircraft," in American Control Conference,
Philadelphia, 2019.
[8] E. A. Morelli, "GLOBAL NONLINEAR PARAMETRIC MODELING WITH
APPLICATION TO F-16 AERODYNAMICS," NASA, Hampton, VA, 1997.
[9] A. F. Gabernet, Controllers for Systems with Bounded Actuators: Modeling and
control of an F-16 aircraft, Irvine CA: UCA, 2007.
[10] Y. Huo, "Model of F-16 Fighter Aircraft -Equation of Motions-," Los Angeles
CA.
[11] H. Georgieva and V. Serbezov, "Mathematical Model of Aircraft Ground
Dynamics," in International Conference on Military Technologies, Brno, 2017.
[12] Q. Yin, H. Nie and X. Wei, "Dynamics and Directional Stability of High-Speed
Unmanned Aerial Vehicle Ground Taxiing Process," Journal of Aircraft, vol. 57,
no. 4, 2020.
[13] L. Bo, J. Zongxia and W. Shaoping, "Research on Modeling and Simulation of
Aircraft – Taxiing Rectification," in 2006 IEEE Conference on Robotics,
Automation and Mechatronics, Bangkok, 2006.
[14] E. Coetzee, B. Krauskopf and M. Lowenberg, "Nonlinear Aircraft Ground
Dynamics," in International Conference on Nonlinear Problems in Aviation and
Aerospace, 2006.
[15] S. Pines and R. Hueschen, "Guidance and navigation for automatic landing,
rollout, and turnoff using MLS and magnetic cable sensors," in Guidance and
Control Conference, Palo Alto CA, 1978.
[16] R. F. Smiley and W. B. Horne, "Mechanical Properties Of Pneumatic Tires With
Special Reference To Modern Aircraft Tires," NACA, Langley Field VA, 1958.
[17] A. De Marco, E. L. Duke and J. S. Berndt, "A General Solution to the Aircraft
Trim Problem," in AIAA Modeling and Simulation Technologies Conference and
Exhibit, Hilton Head SC, 2007.
[18] J. Luo, "MULTI-AXIS TRIM PROCESSING". United States Patent US
2008O147251A1, 19 June 2008.
[19] A. A. Pashilkar, "Algorithms for Aircraft Trim Analysis on Ground," in AIAA
Flight Simulation Technologies Conference, Sand Diego CA, 1996.
[20] M. Millidere, U. Karaman, S. Uslu, C. Kasnakoğlu and T. Çimen, "Newton-
Raphson Methods in Aircraft Trim: A Comparative Study," in AIAA Aviation
Forum, Virtual Event, 2020.
[21] S. Ismail, A. A. Pashilkar, R. Ayyagari and S. N., "Improved autolanding
controller for aircraft encountering unknown actuator failures," in 2013 IEEE
Symposium on Computational Intelligence for Security and Defense Applications
(CISDA), Singapore, 2013.
[22] C.-M. Lin and E.-A. Boldbataar, "Autolanding Control Using Recurrent Wavelet
Elman Neural Network," IEEE Transactions on Systems, Man, and Cybernetics:
Systems, vol. 45, no. 9, pp. 1281-1291, 2015.
[23] S. Ismail, A. A. Pashilkar and R. Ayyagari, "Phase compensation and antiwindup
design for neural-aided sliding mode fault-tolerant autoland controller,"
in 2015 International Conference on Cognitive Computing and Information
Processing(CCIP), Noida, 2015.
[24] H. Xiong, J.-q. Yi, G.-l. Fan, F.-s. Jing and R.-y. Yuan, "Autolanding of
unmanned aerial vehicles based on Active Disturbance Rejection Control," in
2009 IEEE International Conference on Intelligent Computing and Intelligent
Systems, Shanghai, 2009.
[25] T. Wagner and J. Valasek, "Digital Autoland Control Laws Using Quantitative
Feedback Theory and Direct Digital Design," JOURNAL OF GUIDANCE,
CONTROL, AND DYNAMICS, vol. 30, no. 5, pp. 1399-1413, 2007.
[26] D. V. Rao and T. H. Go, "Automatic landing system design using sliding mode
control," Aerospace Science and Technology, vol. 32, pp. 180-187, 2014.
[27] K. Lee, S. E. Li and D. Kum, "Synthesis of Robust Lane Keeping Systems:
Impact of Controller and Design Parameters on System Performance," IEEE
TRANSACTIONS ON INTELLIGENT TRANSPORTATION SYSTEMS, vol. 20,
no. 8, pp. 3129-3141, 2018.
[28] M. Yamamoto, Y. Kagawa and A. Okuno, "Robust Control for Automated Lane
Keeping against Lateral Disturbance," in International Conference on Intelligent
Transportation Systems, Tokyo, 1999.
[29] N. C. Basjaruddin, F. Adinugraha, T. Ramadhan, D. Saefudin and E. Rakhman,
"Lane Keeping Assist Based on Fuzzy Logic using Camera Sensor," in 2019
International Conference on Advanced Mechatronics, Intelligent Manufacture
and Industrial Automation (ICAMIMIA), Batu, 2019.
[30] K. D. Young, V. I. Utkin and Ü. Özgüner, "A Control Engineer’s Guide to Sliding
Mode Control," IEEE Transactions on Control Systems Technology, vol. 7, no.
3, pp. 328-342, 1999.
[31] K.-K. Young, P. V. Kokotovich and V. I. Utkin, "A singular perturbation analysis
of high-gain feedback systems," IEEE Transactions on Automatic Control, vol.
22, no. 6, pp. 931-938, 1977.
[32] J. J. Slotine and S. S. Sastry, "Tracking control of non-linear systems using
sliding surfaces with application to robot manipulators," in 1983 American
Control Conference, San Francisco CA, 1983.
[33] J. A. Burton and A. S. I. Zinober, "Continuous approximation of variable
structure control," International Journal of Systems Science, vol. 17, no. 6, pp.
875-885, 1986.
[34] A. G. Bondarev, S. A. Bondarev, N. E. Kostyleva and V. I. Utkin, "Sliding modes
in systems with asymptotic state observers," Automation and Remote Control,
vol. 46, pp. 679-684, 1985.
[35] H. G. Kwatny and K.-K. D. Young, "The variable structure servomechanism,"
Systems and Control Letters, vol. 1, no. 3, pp. 184-191, 1981.
[36] K. D. Young and S. V. Drakunov, "Discontinuous Frequency Shaping
Compensation for Uncertain Dynamic Systems," IFAC Proceedings Volumes,
vol. 26, no. 2, pp. 207-210, 1993.
[37] İ. Haskara, C. Hatipoğlu and Ü. Özgüner, "Sliding Mode Compensation,
Estimation and Optimization Methods in Automotive Control," in Variable
Structure Systems: Towards the 21st Century, Springer, 2002, pp. 155-174.
[38] B. Kürkçü, C. Kasnakoğlu and M. Ö. Efe, "Disturbance/Uncertainty Estimator
Based Integral Sliding-Mode Control," IEEE Transactions on Automatic
Control, vol. 63, no. 11, pp. 3940-3947, 2018.
[39] P. B. Sujit, S. Saripalli and J. Sousa, "An Evaluation of UAV Path Following
Algorithms," in 2013 European Control Conference (ECC), Zurich, 2013.
[40] S. Park, J. Deyst and J. P. How, "Performance and Lyapunov Stability of a
Nonlinear Path-Following Guidance Method," Journal of Guidance, Control,
and Dynamics, vol. 30, no. 6, pp. 1718-1728, 2007.
[41] D. R. Nelson, D. B. Barber, T. W. McLain and R. W. Beard, "Vector Field Path
Following for Miniature Air Vehicles," IEEE Transactions on Robotics, vol. 23,
no. 3, pp. 519-529, 2007.
[42] A. Ratnoo, P. B. Sujit and M. Kothari, "Adaptive Optimal Path Following for
High Wind Flights," in IFAC World Congress, Milano, 2011.
[43] H. Tiftikçi, "Vektör Alanı ile Eğrilerin Takibi ve Seyrüsefer," in VII. ULUSAL
HAVACILIK VE UZAY KONFERANSI, Samsun, 2018.
[44] Mathworks, "mathworks.com," Mathworks, [Online]. Available:
https://www.mathworks.com/help/aeroblks/about-aerospace-coordinatesystems.
html. [Accessed 18 10 2022].
[45] P. Serra, Image-Based Visual Servo Control of Aerial Vehicles (Phd Thesis),
Lisbon: University of Lisbon, 2016.
[46] G. Verzichelli, "Development of an Aircraft Landing Gears Model with Steering
System in Modelica-Dymola," The Modelica Association, 2008.
[47] B. L. Stevens and F. L. Lewis, Aircraft Control and Simulation, New York: John
Wiley and Sons Inc., 1992.
[48] J. C. D. van Zundert, "Direction cosine matrix based IMU implementation in
Matlab/Simulink," Eindhoven University of Technology, Eindhoven, 2013.
[49] "depositphotos," [Online]. Available:
https://tr.depositphotos.com/7305199/stock-photo-monte-real-portugal-april-
7.html. [Accessed 22 01 2023].
[50] E. Muir and D. Moormann, "Description of the HIRM Model," in Robust Flight
Control Design Challenge Problem Formulation and Manual: the High
Incidence Research Model (HIRM), Group for Aeronautical Research and
Technology in Europe (GARTEUR), 1997, pp. 5-25.
[51] Mathworks Inc., "Mathworks Help Center," Mathworks Inc., [Online].
Available:
https://www.mathworks.com/help/aeroblks/drydenwindturbulencemodelcontinu
ous.html. [Accessed 21 October 2022].
[52] İ. Gümüşboğa and A. İftar, "Aircraft Trim Analysis by Particle Swarm
Optimization," Journal of Aeronautics and Space Technologies (JAST), vol. 12,
no. 2, pp. 185-196, 2019.
[53] Wikipedia, "Wikipedia," [Online]. Available:
https://en.wikipedia.org/wiki/Secant_method#/media/File:Secant_method.svg.
[Accessed 25 10 2022].
[54] H. Aktan, F-16 flight control system design by using continuous time generalized
predictive control (Master's Thesis), Ankara: Hacettepe University, 2018.
[55] E. Kutluay and E. Hatipoğlu, "Geometric Path Planning for Parallel Parking and
Relevant Parameters," Advances in Automotive Engineering, vol. 2, no. 1, pp. 1-
14, 2021.
[56] S. Martin, "boldmethod.com," [Online]. Available:
https://www.boldmethod.com/learn-to-fly/regulations/runway-markings-andspacing-
fly-better-patterns-to-landing-explained/. [Accessed 29 March 2022].
[57] Y. Shtessel, C. Edwards, L. Fridman and A. Levant, Sliding Mode Control and
Observation, New York, Heidelberg, Dordrecht, London: Springer, 2014.
[58] US Dept. of Defence, "Military Specification Flying Qualities of Piloted
Airplanes (MIL-F 8785)," US Dept. of Defence, 1980.
[59] C. Brezinski and J. Van Iseghem, "Pade Approximations," in Handbook of
Numerical Analysis, Lille, Elsevier, 2005, pp. 47-222.
[60] Mathworks, "mathworks.com," Mathworks, [Online]. Available:
https://www.mathworks.com/help/control/ref/pade.html. [Accessed 5 11 2022].
[61] Mathworks, "mathworks.com," Mathworks, [Online]. Available:
https://www.mathworks.com/help/simulink/slref/anti-windup-control-using-apid-
controller.html. [Accessed 5 11 2022].
[62] W. B. Cleveland, "NASA Technical Note TN D-8331 FIRST-ORDER-HOLD
INTERPOLATION DIGITAL-TO-ANALOG CONVERTER WITH
APPLICATION TO AIRCRAFT SIMULATION," NASA, Moffett Field CA.,
1976.
[63] B. L. Stevens and F. L. Lewis, Aircraft Control and Simulation, New York: John
Wiley and Sons Inc., 1992.
