Documents disponibles écrits par cet auteur

Embedded optimization for input shaping / Lieboud Van den Broeck in IEEE Transactions on control systems technology, Vol. 18 N° 5 (Septembre 2010) 

Public ISBD [article]  in IEEE Transactions on control systems technology > Vol. 18 N° 5 (Septembre 2010) . - pp. 1146-1154 Titre : Embedded optimization for input shaping Type de document : texte imprimé Auteurs : Lieboud Van den Broeck, Auteur ; Moritz Diehl, Auteur ; Swevers, Jan, Auteur Année de publication : 2011 Article en page(s) : pp. 1146-1154 Note générale : Génie Aérospatial Langues : Anglais (eng) Mots-clés : Mechanical  systems  Mechatronics  Motion  control  Predictive  control  Time  optimal  control  Vibration  control Index. décimale : 629.1 Résumé : Traditional input shaping filters are linear mappings between reference input and system input. These filters are often unnecessarily conservative with respect to input and output bounds if multiple references with different amplitudes are applied. This conservatism is due to its offline design and linear mapping. This paper presents an online input prefilter design approach to overcome this conservatism. The resulting prefilters are called predictive prefilters because the online design is based on the model predictive control (MPC) framework. By theoretical considerations, simulation results and experimental results, it is shown that this new prefilter is at least as good as traditional prefilters, and can result in substantial gains in settling time. Tests show that a 30% decrease in settling time is possible in a common input shaping application. DEWEY : 629.1 ISSN : 1063-6536 En ligne : http://ieeexplore.ieee.org/xpl/freeabs_all.jsp?arnumber=5282519 [article] Embedded optimization for input shaping [texte imprimé] / Lieboud Van den Broeck, Auteur ; Moritz Diehl, Auteur ; Swevers, Jan, Auteur . - 2011 . - pp. 1146-1154. Génie Aérospatial Langues : Anglais (eng) in IEEE Transactions on control systems technology > Vol. 18 N° 5 (Septembre 2010) . - pp. 1146-1154 Mots-clés : Mechanical  systems  Mechatronics  Motion  control  Predictive  control  Time  optimal  control  Vibration  control Index. décimale : 629.1 Résumé : Traditional input shaping filters are linear mappings between reference input and system input. These filters are often unnecessarily conservative with respect to input and output bounds if multiple references with different amplitudes are applied. This conservatism is due to its offline design and linear mapping. This paper presents an online input prefilter design approach to overcome this conservatism. The resulting prefilters are called predictive prefilters because the online design is based on the model predictive control (MPC) framework. By theoretical considerations, simulation results and experimental results, it is shown that this new prefilter is at least as good as traditional prefilters, and can result in substantial gains in settling time. Tests show that a 30% decrease in settling time is possible in a common input shaping application. DEWEY : 629.1 ISSN : 1063-6536 En ligne : http://ieeexplore.ieee.org/xpl/freeabs_all.jsp?arnumber=5282519

Friction compensation of an XY feed table using friction-model-based feedforward and an inverse-model-based disturbance observer / Jamaludin, Zamberi in IEEE transactions on industrial electronics, Vol. 56 N° 10 (Octobre 2009) 

Public ISBD [article]  in IEEE transactions on industrial electronics > Vol. 56 N° 10 (Octobre 2009) . - pp. 3848 - 3853 Titre : Friction compensation of an XY feed table using friction-model-based feedforward and an inverse-model-based disturbance observer Type de document : texte imprimé Auteurs : Jamaludin, Zamberi, Auteur ; Van Brussel, Hendrik, Auteur ; Swevers, Jan, Auteur Article en page(s) : pp. 3848 - 3853 Note générale : Génie électrique Langues : Anglais (eng) Mots-clés : Control  systems  Friction  Motion  control Index. décimale : 621.38 Dispositifs électroniques. Tubes à électrons. Photocellules. Accélérateurs de particules. Tubes à rayons X Résumé : Uncompensated friction forces compromise the positioning and tracking accuracy of motion systems. A unique tracking error known as quadrant glitch is the result of complex nonlinear friction behavior at motion reversal or near-zero velocity. Linear-feedback control strategies such as PID, cascade P/PI, or state-feedback control have to be extended with model- and nonmodel-based friction-compensation strategies to acquire sufficiently high path and tracking accuracy. This paper analyzes and validates experimentally three different friction-compensation strategies for a linear motor-based xy feed drive of a high-speed milling machine: (1) friction-model-based feedforward; (2) an inverse-model-based disturbance observer; and (3) the combination of both techniques. The friction models considered are as follows: a simple static-friction model and the recently developed generalized Maxwell-slip (GMS) model. GMS friction-model-based feedforward combined with disturbance observer almost completely eliminates the radial tracking error and quadrant glitches. DEWEY : 621.38 ISSN : 0278-0046 En ligne : http://ieeexplore.ieee.org/xpl/freeabs_all.jsp?arnumber=4808130 [article] Friction compensation of an XY feed table using friction-model-based feedforward and an inverse-model-based disturbance observer [texte imprimé] / Jamaludin, Zamberi, Auteur ; Van Brussel, Hendrik, Auteur ; Swevers, Jan, Auteur . - pp. 3848 - 3853. Génie électrique Langues : Anglais (eng) in IEEE transactions on industrial electronics > Vol. 56 N° 10 (Octobre 2009) . - pp. 3848 - 3853 Mots-clés : Control  systems  Friction  Motion  control Index. décimale : 621.38 Dispositifs électroniques. Tubes à électrons. Photocellules. Accélérateurs de particules. Tubes à rayons X Résumé : Uncompensated friction forces compromise the positioning and tracking accuracy of motion systems. A unique tracking error known as quadrant glitch is the result of complex nonlinear friction behavior at motion reversal or near-zero velocity. Linear-feedback control strategies such as PID, cascade P/PI, or state-feedback control have to be extended with model- and nonmodel-based friction-compensation strategies to acquire sufficiently high path and tracking accuracy. This paper analyzes and validates experimentally three different friction-compensation strategies for a linear motor-based xy feed drive of a high-speed milling machine: (1) friction-model-based feedforward; (2) an inverse-model-based disturbance observer; and (3) the combination of both techniques. The friction models considered are as follows: a simple static-friction model and the recently developed generalized Maxwell-slip (GMS) model. GMS friction-model-based feedforward combined with disturbance observer almost completely eliminates the radial tracking error and quadrant glitches. DEWEY : 621.38 ISSN : 0278-0046 En ligne : http://ieeexplore.ieee.org/xpl/freeabs_all.jsp?arnumber=4808130