Design and control of pickup actuator for Near Field Recording: Optimal design guide and decoupling control approach of pickup actuator for coupled motion in Near Field Recording system - Couverture souple

Lee, SeongHun

Couverture souple

ISBN 10 : 363915780X ISBN 13 : 9783639157802

Editeur : VDM Verlag, 2009

Synopsis

To understand the coupled motion between linear and rotational motion of 3-axis actuator, generalized actuator modeling was constructed, and from the planar vector model of actuator, expanded equation of motion, which could describe 3-axis motion was built. From the equation of motion, 3x3 transfer function matrix was obtained, and coupling behavior was observed. To analyze the coupling behavior, singular value decomposition of transfer function matrix was applied and led to the conclusion that rotational motion strongly influenced linear motion. Therefore, to obtain decoupling system, transfer function matrix should be a diagonal form, and in order to do so, decoupler was inserted in front of actuator plant model. Decoupler made the pseudo plant, which was composed of decoupler and original actuator plant as a diagonal form. To change actuator plant model, design variable was selected and optimal value range was confirmed. Sensitivity analysis was performed to get the critical variables, which affected coupling motion between linear and rotational direction.

Détails de l'édition

• Éditeur: VDM Verlag
• Date d'édition: 2009
• Langue: anglais
• ISBN 10: 363915780X
• ISBN 13: 9783639157802
• Reliure: Broché
• Nombre de pages: 156
• Coordonnées du fabricant: non disponible
• Personne responsable: non disponible