Smart Structures in Instrumentation for Astronomy: Shape Memory Alloy and Piezo Composites actuators embedded in Carbon Fiber Deformable Mirrors: new technology to Instrumentation for Astronomy - Couverture souple

Riva, Marco

 
9783844310382: Smart Structures in Instrumentation for Astronomy: Shape Memory Alloy and Piezo Composites actuators embedded in Carbon Fiber Deformable Mirrors: new technology to Instrumentation for Astronomy
Couverture souple
ISBN 10 : 384431038X ISBN 13 : 9783844310382
Editeur : LAP LAMBERT Academic Publishing, 2011

Synopsis

This work examines the porting of smart structures into design and construction of next generation instrumentation for Astronomy. An optical spherical mirror with actively deformable curvature has been selected as representative benchmark for technological and numerical investigation. The proper smart actuator to be adopted, their embedding technology and the optical quality replica process needed to its manufacturing are treated in this work including numerical tools for the performance evaluation. Several technologies can be considered to design smart structures, here piezo-composites and SMA based actuators are evaluated. Numerical and experimental techniques purposely developed to integrate piezocomposites into smart structures are presented to exploit their increased flexibility respect to monolithic PZT. Moreover the technology developed for the embedding of SMA actuators in smart structures including the interface analysis with the host material is described. Some possible performance modelling approaches and control systems of the actuators are addressed taking into account trade-off between detailed analysis and overall performance prediction as a function of the CPU time.

Les informations fournies dans la section « Synopsis » peuvent faire référence à une autre édition de ce titre.

Présentation de l'éditeur

This work examines the porting of smart structures into design and construction of next generation instrumentation for Astronomy. An optical spherical mirror with actively deformable curvature has been selected as representative benchmark for technological and numerical investigation. The proper smart actuator to be adopted, their embedding technology and the optical quality replica process needed to its manufacturing are treated in this work including numerical tools for the performance evaluation. Several technologies can be considered to design smart structures, here piezo-composites and SMA based actuators are evaluated. Numerical and experimental techniques purposely developed to integrate piezocomposites into smart structures are presented to exploit their increased flexibility respect to monolithic PZT. Moreover the technology developed for the embedding of SMA actuators in smart structures including the interface analysis with the host material is described. Some possible performance modelling approaches and control systems of the actuators are addressed taking into account trade-off between detailed analysis and overall performance prediction as a function of the CPU time.

Biographie de l'auteur

Marco Riva was born in 1979. In 2009 he earned Ph.D. in Aerospace Engineering at Politecnico di Milano with a dissertation entitled “Smart Structures in Instrumentation for Astronomy”. Since 2005 he is researcher at INAF (Brera), working on functional materials and numerical simulation of Optomechanical Instruments.

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
2011
Langue
anglais
ISBN 10 
384431038X
ISBN 13 
9783844310382
Reliure
Broché
Nombre de pages
144
Coordonnées du fabricant
non disponible
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