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Dynamics and control of bridge cranes transporting distributed-mass payloads / Raymond Manning in Transactions of the ASME . Journal of dynamic systems, measurement, and control, Vol. 132 N° 1 (Janvier/Fevrier 2010) 

Public ISBD [article]  in Transactions of the ASME . Journal of dynamic systems, measurement, and control > Vol. 132 N° 1 (Janvier/Fevrier 2010) . - 08 p. Titre : Dynamics and control of bridge cranes transporting distributed-mass payloads Type de document : texte imprimé Auteurs : Raymond Manning, Auteur ; Jeffrey Clement, Auteur ; Dooroo Kim, Auteur Année de publication : 2010 Article en page(s) : 08 p. Note générale : Systèmes dynamiques Langues : Anglais (eng) Mots-clés : Bridges  (structures)  Cranes  Damping  Human  factors  Input-output  stability  Pendulums  Shape  control Index. décimale : 629.8 Résumé : The large-amplitude and lightly-damped oscillation of crane payloads is detrimental to safe and efficient operation. The problem is further complicated when the payload creates a double-pendulum effect. Previous researches have shown that single-mode oscillations can be greatly reduced by properly shaping the inputs to the crane motors. This paper builds on previous developments by thoroughly describing the double-pendulum dynamic effects as a function of payload parameters and the crane configuration. Furthermore, an input-shaping control method is developed to suppress double-pendulum oscillations created by a payload with distributed-mass properties. Experiments performed on a 10-ton industrial bridge crane verify the effectiveness of the method. A critical aspect of the testing was human operator studies, wherein numerous operators utilized the input-shaping controller to perform manipulation tasks. The performance improvements provided by the input-shaping controller, as well as operator learning effects, are reported. DEWEY : 629.8 ISSN : 0022-0434 En ligne : http://asmedl.aip.org/getabs/servlet/GetabsServlet?prog=normal&id=JDSMAA00013200 [...] [article] Dynamics and control of bridge cranes transporting distributed-mass payloads [texte imprimé] / Raymond Manning, Auteur ; Jeffrey Clement, Auteur ; Dooroo Kim, Auteur . - 2010 . - 08 p. Systèmes dynamiques Langues : Anglais (eng) in Transactions of the ASME . Journal of dynamic systems, measurement, and control > Vol. 132 N° 1 (Janvier/Fevrier 2010) . - 08 p. Mots-clés : Bridges  (structures)  Cranes  Damping  Human  factors  Input-output  stability  Pendulums  Shape  control Index. décimale : 629.8 Résumé : The large-amplitude and lightly-damped oscillation of crane payloads is detrimental to safe and efficient operation. The problem is further complicated when the payload creates a double-pendulum effect. Previous researches have shown that single-mode oscillations can be greatly reduced by properly shaping the inputs to the crane motors. This paper builds on previous developments by thoroughly describing the double-pendulum dynamic effects as a function of payload parameters and the crane configuration. Furthermore, an input-shaping control method is developed to suppress double-pendulum oscillations created by a payload with distributed-mass properties. Experiments performed on a 10-ton industrial bridge crane verify the effectiveness of the method. A critical aspect of the testing was human operator studies, wherein numerous operators utilized the input-shaping controller to perform manipulation tasks. The performance improvements provided by the input-shaping controller, as well as operator learning effects, are reported. DEWEY : 629.8 ISSN : 0022-0434 En ligne : http://asmedl.aip.org/getabs/servlet/GetabsServlet?prog=normal&id=JDSMAA00013200 [...]