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Adaptive compensation for reaction force with frequency variation in shaking table systems / Seki, Kenta 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. 3864 - 3871 Titre : Adaptive compensation for reaction force with frequency variation in shaking table systems Type de document : texte imprimé Auteurs : Seki, Kenta, Auteur ; Iwasaki, Makoto, Auteur ; Kawafuku, Motohiro, Auteur Article en page(s) : pp. 3864 - 3871 Note générale : Génie électrique Langues : Anglais (eng) Mots-clés : Adaptive  compensation  Adaptive  notch  filter  Reaction  force  Sharing  table  Specefic  frequency Index. décimale : 621.38 Dispositifs électroniques. Tubes à électrons. Photocellules. Accélérateurs de particules. Tubes à rayons X Résumé : This paper presents an adaptive control methodology of a shaking table system for earthquake simulators. In the system, reaction forces generated by a specimen deteriorate the table motion performance, resulting in lower control accuracy in seismic tests. In particular, in cases of excitation tests for structures (power facilities, large vehicles, etc.) including motors with periodic rotation, the reaction force as a disturbance is excited with a specific frequency during their actual operations. In addition, the variation of the rotational frequency in the motor causes the variation of frequency in the disturbance. In order to compensate for the disturbance, therefore, an adaptive feedback compensator is designed to improve the disturbance suppression capability, by applying an adaptive notch filter to identify the frequency in an online manner. The proposed control approach has been verified by experiments using a prototype of a shaking table system. DEWEY : 621.38 ISSN : 0278-0046 En ligne : http://ieeexplore.ieee.org/xpl/freeabs_all.jsp?arnumber=4926192 [article] Adaptive compensation for reaction force with frequency variation in shaking table systems [texte imprimé] / Seki, Kenta, Auteur ; Iwasaki, Makoto, Auteur ; Kawafuku, Motohiro, Auteur . - pp. 3864 - 3871. Génie électrique Langues : Anglais (eng) in IEEE transactions on industrial electronics > Vol. 56 N° 10 (Octobre 2009) . - pp. 3864 - 3871 Mots-clés : Adaptive  compensation  Adaptive  notch  filter  Reaction  force  Sharing  table  Specefic  frequency Index. décimale : 621.38 Dispositifs électroniques. Tubes à électrons. Photocellules. Accélérateurs de particules. Tubes à rayons X Résumé : This paper presents an adaptive control methodology of a shaking table system for earthquake simulators. In the system, reaction forces generated by a specimen deteriorate the table motion performance, resulting in lower control accuracy in seismic tests. In particular, in cases of excitation tests for structures (power facilities, large vehicles, etc.) including motors with periodic rotation, the reaction force as a disturbance is excited with a specific frequency during their actual operations. In addition, the variation of the rotational frequency in the motor causes the variation of frequency in the disturbance. In order to compensate for the disturbance, therefore, an adaptive feedback compensator is designed to improve the disturbance suppression capability, by applying an adaptive notch filter to identify the frequency in an online manner. The proposed control approach has been verified by experiments using a prototype of a shaking table system. DEWEY : 621.38 ISSN : 0278-0046 En ligne : http://ieeexplore.ieee.org/xpl/freeabs_all.jsp?arnumber=4926192