We study an optimal control problem affine in two-dimensional bounded control, in which there is a singular point of the second order. In the neighborhood of the singular point we find optimal spiral-like solutions that attain the singular point in finite time, wherein the corresponding optimal controls perform an infinite number of rotations along the circle $ S^{1} $. The problem is related to the control of an inverted spherical pendulum in the neighborhood of the upper unstable equilibrium.
| Citation: |
| [1] |
A. A. Agrachev and Y. L. Sachkov, Control Theory from the Geometric Viewpoint, vol. 87 of Encyclopaedia of Mathematical Sciences, Springer-Verlag Berlin Heidelberg, 2004.
doi: 10.1007/978-3-662-06404-7.
|
| [2] |
D. Angeli, Almost global stabilization of the inverted pendulum via continuous state feedback, Automatica, 37 (2001), 1103-1108.
doi: 10.1016/S0005-1098(01)00064-4.
|
| [3] |
N. D. Anh, H. Matsuhisa, L. D. Viet and M. Yasuda, Vibration control of an inverted pendulum type structure by passive mass-spring-pendulum dynamic vibration absorber, Journal of Sound and Vibration, 307 (2007), 187-201.
doi: 10.1016/j.jsv.2007.06.060.
|
| [4] |
K. J. Åström, J. Aracil and F. Gordillo, A family of smooth controllers for swinging up a pendulum, Automatica J. IFAC, 44 (2008), 1841-1848.
doi: 10.1016/j.automatica.2007.10.040.
|
| [5] |
K. J. Åström and K. Furuta, Swinging up a pendulum by energy control, Automatica J. IFAC, 36 (2000), 287-295.
doi: 10.1016/S0005-1098(99)00140-5.
|
| [6] |
A. M. Bloch, N. E. Leonard and J. E. Marsden, Matching and stabilization by the method of controlled lagrangians, Proceedings of the 37th IEEE Conference on Decision and Control, 2 (1998), 1446-1451.
doi: 10.1109/CDC.1998.758490.
|
| [7] |
A. M. Bloch, N. E. Leonard and J. E. Marsden, Controlled Lagrangians and the stabilization of mechanical systems I: The first matching theorem, IEEE Trans. Automat. Control, 45 (2000), 2253-2270.
doi: 10.1109/9.895562.
|
| [8] |
F. Boarotto, Y. Chitour and M. Sigalotti, Fuller singularities for generic control-affine systems with an even number of controls, SIAM J. Control Optim., 58 (2020), 1207-1228.
doi: 10.1137/19M1285305.
|
| [9] |
F. Boarotto and M. Sigalotti, Time-optimal trajectories of generic control-affine systems have at worst iterated Fuller singularities, Ann. Inst. H. Poincaré Anal. Non Linéaire, 36 (2019), 327-346.
doi: 10.1016/j.anihpc.2018.05.005.
|
| [10] |
B. Bonnard and M. Chyba, Singular Trajectories and their Role in Control Theory, 40 of Mathématiques et Applications, Springer-Verlag Berlin Heidelberg, 2003.
|
| [11] |
V. F. Borisov, Kelley condition and structure of Lagrange manifold in a neighborhood of a first-order singular extremal, J. Math. Sci. (N.Y.), 151 (2008), 3431-3472.
doi: 10.1007/s10958-008-9046-y.
|
| [12] |
M. Caponigro, R. Ghezzi, B. Piccoli and E. Trélat, Regularization of chattering phenomena via bounded variation controls, IEEE Trans. Automat. Control, 63 (2018), 2046-2060.
doi: 10.1109/TAC.2018.2810540.
|
| [13] |
N. A. Chaturvedi, N. H. McClamroch and D. S. Bernstein, Asymptotic smooth stabilization of the inverted 3-d pendulum, IEEE Trans. Automat. Control, 54 (2009), 1204-1215.
doi: 10.1109/TAC.2009.2019792.
|
| [14] |
F. L. Chernousko and S. A. Reshmin, Time-optimal swing-up feedback control of a pendulum, Nonlinear Dynam., 47 (2007), 65-73.
doi: 10.1007/s11071-006-9059-3.
|
| [15] |
S. V. Chukanov and A. A. Milyutin, Qualitative study of singularities for extremals of quadratic optimal control problem, Russian J. Math. Phys., 2 (1994), 31-48.
|
| [16] |
M. Chyba, N. E. Leonard and E. D. Sontag, Singular trajectories in multi-input time-optimal problems: Application to controlled mechanical systems, J. Dynam. Control Systems, 9 (2003), 103-129.
doi: 10.1023/A:1022159318457.
|
| [17] |
A. Elhasairi and A. Pechev, Humanoid robot balance control using the spherical inverted pendulum mode, Frontiers in Robotics and AI, 2 (2015), 1-13.
doi: 10.3389/frobt.2015.00021.
|
| [18] |
M. Farkas, Periodic Motions, New York: Springer-Verlag, 1994.
doi: 10.1007/978-1-4757-4211-4.
|
| [19] |
R. Fujimoto and N. Sakamoto, The stable manifold approach for optimal swing up and stabilization of an inverted pendulum with input saturation, IFAC Proceedings Volumes, 44 (2011), 8046-8051.
doi: 10.3182/20110828-6-IT-1002.01504.
|
| [20] |
B. S. Goh, Optimal singular rocket and aircraft trajectories, in 2008 Chinese Control and Decision Conference, (2008), 1531–1536.
doi: 10.1109/CCDC.2008.4597574.
|
| [21] |
O. O. Gutiérrez F., C. Aguilar Ibáñez and H. Sossa A., Stabilization of the inverted spherical pendulum via Lyapunov approach, Asian J. Control, 11 (2009), 587-594.
doi: 10.1002/asjc.140.
|
| [22] |
P. Hartman, Ordinary Differential Equations, J. Wiley & Sons, New York, London, Sydney, 1964.
|
| [23] |
P. L. Kapitza, Dynamic stability of the pendulum with vibrating suspension point, Soviet Physics –- JETP, 21 (1951), 588-597.
|
| [24] |
I. A. K. Kupka, The ubiquity of Fuller's phenomenon, Nonlinear Controllability and Optimal Control, 133 (1990), 313-350.
|
| [25] |
U. Ledzewicz and H. Schättler, Singular controls and chattering arcs in optimal control problems arising in biomedicine, Control Cybernet., 38 (2009), 1501-1523.
|
| [26] |
U. Ledzewicz and H. Schättler, Multi-input optimal control problems for combined tumor anti-angiogenic and radiotherapy treatments, J. Optim. Theory Appl., 153 (2012), 195-224.
doi: 10.1007/s10957-011-9954-8.
|
| [27] |
T. Lee, M. Leok and N. H. McClamroch, Dynamics and control of a chain pendulum on a cart, in 2012 IEEE 51st IEEE Conference on Decision and Control (CDC), (2012), 2502–2508.
doi: 10.1109/CDC.2012.6427059.
|
| [28] |
G. Liu, D. Nešić and I. Mareels, Non-local stabilization of a spherical inverted pendulum, Internat. J. Control, 81 (2008), 1035-1053.
doi: 10.1080/00207170701397541.
|
| [29] |
L. V. Lokutsievskiy and V. A. Myrikova, Optimal synthesis in a model problem with two-dimensional control lying in an arbitrary convex set, Math. Notes, 105 (2019), 36-55.
doi: 10.1134/S000143461901005X.
|
| [30] |
L. A. Manita, Optimal operating modes with chattering switching in manipulator control problems, J. Appl. Math. Mech., 64 (2000), 17-24.
doi: 10.1016/S0021-8928(00)00021-6.
|
| [31] |
L. Manita and M. Ronzhina, Optimal control of a spherical inverted pendulum, Lobachevskii J. Math., 38 (2017), 954-957.
doi: 10.1134/S1995080217050262.
|
| [32] |
L. A. Manita and M. I. Ronzhina, Optimal synthesis in the control problem of an $n$-link inverted pendulum with a moving base, J. Math. Sci. (N.Y.), 221 (2017), 137-153.
doi: 10.1007/s10958-017-3222-x.
|
| [33] |
Yu. G. Martynenko and A. M. Formal'skii, Controlled pendulum on a movable base, Mechanics of Solids, 43 (2013), 6-18.
doi: 10.3103/S0025654413010020.
|
| [34] |
F. Nicolosi, P. D. Vecchia and D. Ciliberti, An investigation on vertical tailplane contribution to aircraft sideforce, Aerospace Science and Technology, 28 (2013), 401-416.
doi: 10.1016/j.ast.2012.12.006.
|
| [35] |
R. Olfati-Saber, Fixed point controllers and stabilization of the cart-pole system and the rotating pendulum, Proceedings of the 38th IEEE Conference on Decision and Control, 2 (1999), 1174-1181.
doi: 10.1109/CDC.1999.830086.
|
| [36] |
C. Park, Necessary conditions for the optimality of singular arcs of spacecraft trajectories subject to multiple gravitational bodies, Advances in Space Research, 51 (2013), 2125-2135.
doi: 10.1016/j.asr.2013.01.005.
|
| [37] |
L. Postelnik, G. Liu, K. Stol and A. Swain, Approximate output regulation for a spherical inverted pendulum, in Proceedings of the 2011 American Control Conference, (2011), 539–544.
doi: 10.1109/ACC.2011.5991533.
|
| [38] |
R.-E. Precup, S. Preitl, J. Fodor, I.-B. Ursache, P. A. Clep and S. Kilyeni, Experimental validation of iterative feedback tuning solutions for inverted pendulum crane mode control, in 2008 Conference on Human System Interactions, (2008), 536–541.
doi: 10.1109/HSI.2008.4581496.
|
| [39] |
D. B. Reister and S. M. Lenhart, Time-optimal paths for high-speed maneuvering, The International Journal of Robotics Research, 14 (1995), 184-194.
doi: 10.1177/027836499501400208.
|
| [40] |
H. M. Robbins, Optimality of intermediate-thrust arcs of rocket trajectories, AIAA J., 3 (1965), 1094-1098.
doi: 10.2514/3.3060.
|
| [41] |
M. I. Ronzhina, L. A. Manita and L. V. Lokutsievskii, Solutions of a Hamiltonian system with two-dimensional control in the neighborhood of a singular extremal of the second order, Russian Mathematical Surveys, (in the press) (2021), 2 pp.
|
| [42] |
H. Schättler and U. Ledzewicz, Geometric Optimal Control, vol. 38 of ser. Interdisciplinary Applied Mathematics, Springer, New York, 2012.
doi: 10.1007/978-1-4614-3834-2.
|
| [43] |
H. Seywald and R. R. Kumar, Singular control in minimum time spacecraft reorientation, Journal of Guidance, Control, and Dynamics, 16 (1993), 686-697.
doi: 10.2514/6.1991-2645.
|
| [44] |
H. Shen and P. Tsiotras, Time-optimal control of axi-symmetric rigid spacecraft using two controls, Journal of Guidance, Control, and Dynamics, 22 (1999), 682-694.
doi: 10.2514/2.4436.
|
| [45] |
A. S. Shiriaev, H. Ludvigsen and O. Egeland, Swinging up the spherical pendulum via stabilization of its first integrals, Automatica J. IFAC, 40 (2004), 73-85.
doi: 10.1016/j.automatica.2003.07.009.
|
| [46] |
A. Stephenson, On induced stability, Philosophical Magazine, 15 (1908), 233-236.
doi: 10.1080/14786440809463763.
|
| [47] |
Y. Xu, M. Iwase and K. Furuta, Time optimal swing-up control of single pendulum, J. Dyn. Sys., Meas., Control, 123 (2001), 518-527.
doi: 10.1115/1.1383027.
|
| [48] |
I. Yegorov, A. Bratus and Y. Todorov, Synthesis of optimal control in a mathematical model of economic growth under R & D investments, Applied Mathematical Sciences, 9 (2015), 4523-4564.
doi: 10.12988/ams.2015.55404.
|
| [49] |
I. Yegorov, F. Mairet and J.-L. Gouzé, Optimal feedback strategies for bacterial growth with degradation, recycling and effect of temperature, Optimal Control Applications and Methods, 39 (2018), 1084-1109.
doi: 10.1002/oca.2398.
|
| [50] |
M. I. Zelikin, One-parameter families of solutions to a class of PDE optimal control problems, Contemp. Math., 209 (1997), 339-349.
doi: 10.1090/conm/209/02774.
|
| [51] |
M. I. Zelikin and V. F. Borisov, Theory of Chattering Control with Applications to Astronautics, Robotics, Economics, and Engineering, Birkhäuser, Boston, 1994.
doi: 10.1007/978-1-4612-2702-1.
|
| [52] |
M. I. Zelikin and V. F. Borisov, Optimal chattering feedback control, Journal of Mathematical Sciences, 114 (2003), 1227-1344.
doi: 10.1023/A:1022082011808.
|
| [53] |
M. I. Zelikin and V. F. Borisov, Singular optimal regimes in problems of mathematical economics, J. Math. Sci. (N.Y.), 130 (2005), 4409-4570.
doi: 10.1007/s10958-005-0350-5.
|
| [54] |
M. I. Zelikin, L. V. Lokutsievskii and R. Hildebrand, Typicality of chaotic fractal behavior of integral vortices in Hamiltonian systems with discontinuous right hand side, J. Math. Sci. (N.Y.), 221 (2017), 1-136.
doi: 10.1007/s10958-017-3221-y.
|
| [55] |
M. I. Zelikin and L. A. Manita, Optimal control for a Timoshenko beam, Comptes Rendus Mécanique, 334 (2006), 292-297.
doi: 10.1016/j.crme.2006.03.011.
|
| [56] |
M. I. Zelikin and L. F. Zelikina, The deviation of a functional from its optimal value under chattering decreases exponentially as the number of switchings grows, Differential Equations, 35 (1999), 1489-1493.
|
| [57] |
J. Zhu, E. Trélat and M. Cerf, Minimum time control of the rocket attitude reorientation associated with orbit dynamics, SIAM J. Control Optim., 54 (2016), 391-422.
doi: 10.1137/15M1028716.
|
| [58] |
J. Zhu, E. Trélat and M. Cerf, Planar tilting maneuver of a spacecraft: Singular arcs in the minimum time problem and chattering, Discrete Contin. Dyn. Syst. Ser. B, 21 (2016), 1347-1388.
doi: 10.3934/dcdsb.2016.21.1347.
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Optimal chattering solutions in P1
Solutions of the blown-up Hamiltonian system that lie on
The inverted spherical pendulum