180documents trouvés
Robust stability of periodic systems with memory: new formulations, analysis and design results
J.FTREGOUET, Y.EBIHARA, D.ARZELIER, D.PEAUCELLE, C.PITTET, A.FALCOZ
MAC, Kyoto, CNES, ASTRIUM
Manifestation avec acte : IFAC Symposium on Robust Control Design (ROCOND 2012), Aalborg (Danemark), 20-22 Juin 2012, pp.672-677 , N° 12087
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127464Simultaneous Hinfinite vibration control of fluid/plate system via reduced-order controller
B.ROBU, L.BAUDOUIN, C.PRIEUR, D.ARZELIER
MAC
Revue Scientifique : IEEE Transactions on Control Systems Technology, Vol.20, N°3, pp.700-711, Mai 2012 , N° 10518
Lien : http://hal.archives-ouvertes.fr/hal-00584343/fr/
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Abstract
We consider the problem of the active reduction of structural vibrations of a plane wing induced by the sloshing of large masses of fuel inside partly full tank. This study focuses on an experimental device composed of an aluminum rectangular plate equipped with piezoelectric patches at the clamped end and with a cylindrical tip-tank, more or less filled with liquid at the opposite free end. The control is performed through piezoelectric actuators and the main difficulty comes from the complex coupling between the flexible modes of the wing and the sloshing modes of the fuel. First, a partial derivative equation model and then a finite - dimensional approximation, calculated using the first 5 structural modes of the plate and the first 2 liquid sloshing modes, is established. Second, after a model matching procedure, a simultaneous H-infinity control problem associated to the vibration attenuation problem for two different fillings of the tank is stated. Due to the large scale of the synthesis model and to the simultaneous performance requirements, a reduced-order H-infinity controller is computed with HIFOO 2.0 package and is compared with individual designs for different filling levels. Experimental results are finally provided illustrating the relevance of the chosen strategy.
A new mixed iterative algorithm to solve the fuel-optimal linear impulsive rendezvous problem
D.ARZELIER, C.LOUEMBET, nullRONDEAU, A.RONDEPIERRE, M.KARA-ZAITRI
MAC, IMT, Toulouse
Rapport LAAS N°12204, Avril 2012, 26p.
Lien : http://hal.archives-ouvertes.fr/hal-00687499
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Abstract
The optimal fuel impulsive time-fixed rendezvous problem is reviewed. In a linear setting, it may be reformulated as a non convex polynomial optimization problem for a pre-specified fixed number of velocity increments. Relying on variational results previously published in the literature, an improved mixed iterative algorithm is defined to address the issue of optimization over the number of impulses. Revisiting the primer vector theory, it combines variational tests with sophisticated numerical tools from algebraic geometry to solve polynomial necessary and sufficient conditions of optimality. Numerical examples under circular and elliptic assumptions show that this algorithm is efficient and can be integrated into a rendezvous planning tool.
Periodic H2 synthesis for spacecraft attitude control with magnetorquers and reaction wheels
J.FTREGOUET, D.ARZELIER, D.PEAUCELLE, Y.EBIHARA, C.PITTET, A.FALCOZ
MAC, Kyoto, CNES, ASTRIUM
Manifestation avec acte : IEEE Conference on Decision and Control and European Control Conference (CDC-ECC 2011), Orlando (USA, 12-15 Décembre 2011, pp.6876-6881 , N° 11379
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126141L1 gain analysis of linear positive systems and its application
Y.EBIHARA, D.PEAUCELLE, D.ARZELIER
MAC
Manifestation avec acte : IEEE Conference on Decision and Control and European Control Conference (CDC-ECC 2011), Orlando (USA), 12-15 Décembre 2011, pp.4029-4034 , N° 11171
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126144Periodic FIR controller synthesis for discrete-time uncertain linear systems
J.FTREGOUET, D.ARZELIER, D.PEAUCELLE, Y.EBIHARA, C.PITTET, A.FALCOZ
MAC, CNES, ASTRIUM
Manifestation avec acte : IEEE Conference on Decision and Control and European Control Conference (CDC-ECC 2011), Orlando (USA), 12-15 Décembre 2011, pp.1367-1372 , N° 11172
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126143Evaluation des performances des solveurs de programmation linéaire sur le problème du rendez-vous orbital impulsionnel
D.ARZELIER, N.JOZEFOWIEZ, P.LOPEZ, C.LOUEMBET
MAC, MOGISA
Rapport de Contrat : Convention CNES N° 104057/00, Novembre 2011, 43p. , N° 11605
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125804Using polynomial optimization to solve the fuel-optimal linear impulsive rendezvous problem
D.ARZELIER, M.KARA-ZAITRI, C.LOUEMBET, A.DELIBASI
MAC, Istanbul
Revue Scientifique : AIAA Journal of Guidance, Control, and Dynamics, Vol.34, N°5, pp.1567-1576, Septembre 2011 , N° 10510
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125731Some conditions for convexifying static Hinfinite control problems
Y.EBIHARA, D.PEAUCELLE, D.ARZELIER
Kyoto, MAC
Manifestation avec acte : World IFAC Congress (IFAC 2011), Milan (Italie), 28 Août - 2 Septembre 2011, pp.9248-9253 , N° 10684
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125216H2 for HIFOO
D.ARZELIER, G.DEACONU, S.GUMUSSOY, D.HENRION
MAC, KUL
Manifestation sans acte : International Conference on Control and Optimization With Industrial Applications (COIA 2011), Ankara (Turquie), 22-24 Août 2011, 13p. , N° 10613
Lien : http://hal.archives-ouvertes.fr/hal-00524325/fr/
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Abstract
HIFOO is a public-domain Matlab package initially designed for Hinfinity fixed-order controller synthesis, using nonsmooth nonconvex optimization techniques. It was later on extended to multi-objective synthesis, including strong and simultaneous stabilization under Hinfinity constraints. In this paper we describe a further extension of HIFOO to H2 performance criteria, making it possible to address mixed H2/Hinfinity synthesis. We give implementation details and report our extensive benchmark results.