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Design and simulation of a control system for helicopter slung loads - Couverture souple

Krishnamurthi, Jayanth

 
9783659473227: Design and simulation of a control system for helicopter slung loads
Couverture souple
ISBN 10 : 3659473227 ISBN 13 : 9783659473227
Editeur : LAP LAMBERT Academic Publishing, 2013

Synopsis

A control design method to address low-speed stability and handling qualities issues of helicopter slung load operations is presented. A simple model was developed using first principle physics with application of basic control techniques to understand the couple dynamics. Subsequently, a non-linear slung load model was developed and integrated with the GenHel-PSU simulation of the UH-60A. Linear model frequency responses were verified against AFDD OVERCAST models and flight data. A control architecture based on dynamic inversion was developed, combining fuselage and load state feedback. Slung load states were incorporated in feedback linearization and lagged cable angle feedback was introduced. A controller that uses only lagged cable angle feedback (and no load states in feedback linearization) was also investigated. Sensitivity to load parameter variations and optimization methodologies were considered in aiding the design process. The controller and its variations demonstrated key trade-offs between load swing damping and piloted response. The controller was robust and maintained closed-loop stability for a wide range of load mass and cable length values.

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Biographie de l'auteur

Jayanth Krishnamurthi obtained a dual B.S. in Mechanical and Aerospace Engineering from the Rensselaer Polytechnic Institute (RPI) in December 2009. Subsequently, he obtained an M.S. in Aerospace Engineering from The Pennsylvania State University in August 2013. In the fall of 2013, he started working his Ph.D. at RPI.

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

Éditeur
LAP LAMBERT Academic Publishing
Date d'édition
2013
Langue
anglais
ISBN 10 
3659473227
ISBN 13 
9783659473227
Reliure
Broché
Nombre de pages
104
Coordonnées du fabricant
non disponible
Personne responsable
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