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Boundary control of a coupled nonlinear flexible marine riser / Ge, Shuzhi Sam 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. 1080-1091 Titre : Boundary control of a coupled nonlinear flexible marine riser Type de document : texte imprimé Auteurs : Ge, Shuzhi Sam, Auteur ; Wei He, Auteur ; Bernard Voon Ee How, Auteur Année de publication : 2011 Article en page(s) : pp. 1080-1091 Note générale : Génie Aérospatial Langues : Anglais (eng) Mots-clés : Boundary  control  Distributed  parameter  system  Exponential  stability  Lyapunov's  direct  method  Partial  differential  equations  (PDEs)  Uniform  boundedness Index. décimale : 629.1 Résumé : In this paper, boundary control for a coupled nonlinear flexible marine riser with two actuators in transverse and longitudinal directions is developed to reduce the riser's vibrations. The dynamic behavior of the flexible riser is represented by a distributed parameter system with partial differential equations (PDEs) and the control is applied at the top boundary of the riser based on Lyapunov's direct method to regulate the riser's vibrations. With the proposed boundary control, uniform boundedness under ocean current disturbance, and exponential stability under free vibration condition can be achieved. The proposed control is independent of system parameters, which ensures the robustness of the system to variations in parameters. Numerical simulations for demonstrating the effectiveness of the proposed control are presented. DEWEY : 629.1 ISSN : 1063-6536 En ligne : http://ieeexplore.ieee.org/xpl/freeabs_all.jsp?arnumber=5337909 [article] Boundary control of a coupled nonlinear flexible marine riser [texte imprimé] / Ge, Shuzhi Sam, Auteur ; Wei He, Auteur ; Bernard Voon Ee How, Auteur . - 2011 . - pp. 1080-1091. Génie Aérospatial Langues : Anglais (eng) in IEEE Transactions on control systems technology > Vol. 18 N° 5 (Septembre 2010) . - pp. 1080-1091 Mots-clés : Boundary  control  Distributed  parameter  system  Exponential  stability  Lyapunov's  direct  method  Partial  differential  equations  (PDEs)  Uniform  boundedness Index. décimale : 629.1 Résumé : In this paper, boundary control for a coupled nonlinear flexible marine riser with two actuators in transverse and longitudinal directions is developed to reduce the riser's vibrations. The dynamic behavior of the flexible riser is represented by a distributed parameter system with partial differential equations (PDEs) and the control is applied at the top boundary of the riser based on Lyapunov's direct method to regulate the riser's vibrations. With the proposed boundary control, uniform boundedness under ocean current disturbance, and exponential stability under free vibration condition can be achieved. The proposed control is independent of system parameters, which ensures the robustness of the system to variations in parameters. Numerical simulations for demonstrating the effectiveness of the proposed control are presented. DEWEY : 629.1 ISSN : 1063-6536 En ligne : http://ieeexplore.ieee.org/xpl/freeabs_all.jsp?arnumber=5337909