Aeromechanical Stability Augmentation Through Semi-Active Control: Semi-Active Friction based Damping for Rotorcraft Ground Resonance Stability - Couverture souple

Agarwal, Sandeep

 
9783639175325: Aeromechanical Stability Augmentation Through Semi-Active Control: Semi-Active Friction based Damping for Rotorcraft Ground Resonance Stability
Couverture souple
ISBN 10 : 3639175328 ISBN 13 : 9783639175325
Editeur : VDM Verlag, 2009

Synopsis

Helicopter rotors have traditionally been equipped with passive dampers for aeromechanical stability. These passive systems have fixed characteristics, and add to mechanical complexity and high maintenance cost. Furthermore, they are unable to change to compensate for an unexpected loading trends as typically encountered by a rotary wing vehicle. Semi-active control strategies are dissipative in nature, inherently stable, and require a little energy to operate. Hence, they appear to be particularly promising in addressing a number of the challenges facing active control strategies, in that the devices are low power, fail-safe, and reliable. In this study, author investigates friction based semi-active approach for ground resonance stability augmentation and proposes novel strategies for the adaptive, selective and individual damping control. The effectiveness of these control strategies is validated on a comprehensive multibody system model of an army helicopter. The analytical study is supplemented with a novel design of a semi-active lead lag damper and various aspects of its design in application to commercial rotors are discussed.

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À propos de l?auteur

Dr. Sandeep Agarwal is a Rotor Dynamics Engineer at the Boeing Company. Prior to that, he worked at the Center of Excellence in Rotorcraft Technology at Georgia Institute of Technology. His primary interests include Rotor dynamics, Aeroelasticity, Structural Morphing and Structural Optimization. He has authored several technical publications.

Les informations fournies dans la section « A propos du livre » peuvent faire référence à une autre édition de ce titre.

Éditeur
VDM Verlag
Date d'édition
2009
Langue
anglais
ISBN 10 
3639175328
ISBN 13 
9783639175325
Reliure
Broché
Nombre de pages
180
Coordonnées du fabricant
non disponible
Personne responsable
non disponible