Artificial Muscles

Author: Mohsen Shahinpoor
Publisher: CRC Press
ISBN: 9781584887140
Format: PDF, ePub, Docs
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Smart materials are the way of the future in a variety of fields, from biomedical engineering and chemistry to nanoscience, nanotechnology, and robotics. Featuring an interdisciplinary approach to smart materials and structures, Artificial Muscles: Applications of Advanced Polymeric Nanocomposites thoroughly reviews the existing knowledge of ionic polymeric conductor nanocomposites (IPCNCs), including ionic polymeric metal nanocomposites (IPMNCs) as biomimetic distributed nanosensors, nanoactuators, nanotransducers, nanorobots, artificial muscles, and electrically controllable intelligent polymeric network structures. Authored by one of the founding fathers of the field, the book introduces fabrication and manufacturing methods of several electrically and chemically active ionic polymeric sensors, actuators, and artificial muscles, as well as a new class of electrically active polymeric nanocomposites and artificial muscles. It also describes a few apparatuses for modeling and testing various artificial muscles to show the viability of chemoactive and electroactive muscles. The authors present the theories, modeling, and numerical simulations of ionic polymeric artificial muscles’ electrodynamics and chemodynamics. In addition, they feature current industrial and medical applications of IPMNCs. By covering the fabrication techniques of and novel developments in advanced polymeric nanocomposites, this book provides a solid foundation in the subject while stimulating further research.

Mikromechanische Antriebstechnik f r aktive Augenimplantate

Author: Thomas Martin
Publisher: Walter de Gruyter GmbH & Co KG
ISBN: 3110561417
Format: PDF, Mobi
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Das Buch beschreibt erstmals die Entwicklung von mechanischen Antrieben für die aktive Optik des Künstlichen Akkommodationssystems. Das intraokulare, mechatronische Implantat soll die Akkommodationsfähigkeit des menschlichen Auges bei Alterssichtigkeit oder im Rahmen einer Kataraktoperation wiederherstellen. Dafür besonders geeignete optische Wirkprinzipien sind nach früheren Forschungsergebnissen Linsensysteme mit parallel oder senkrecht zur optischen Achse zu verschiebenden Linsenkörpern in Form einer Triple-Optik und einer Alvarez-Optik. Beide benötigen einen mechanischen Antrieb. Eine Analyse der notwendigen Funktionen des Antriebs bildet die Grundlage für die Entwicklung der Funktionsstruktur eines generischen Lösungskonzepts. Für alle Teilfunktionen werden Lösungsansätze in Form von Wirkprinzipien erarbeitet. Mit ihnen wird das generische Antriebskonzept schließlich als Wirkstruktur formuliert. Auf Basis dieses Konzepts werden Antriebsentwürfe für eine Triple-Optik und eine Alvarez-Optik funktions-, fertigungs- und montagegerecht ausgearbeitet. Sie basieren auf piezoelektrischen Aktoren zur mechanischen Bewegungserzeugung. Für beide Antriebe werden planare Getriebe aus einkristallinem Silizium mit jeweils einem neuartigen elastischen Verformungsmechanismus entwickelt. Neben theoretischen Funktionsnachweisen wurden beide Antriebslösungen als Funktionsmuster im Maßstab 1,5:1 bzw. 1,2:1 entworfen, aufgebaut, erfolgreich in Betrieb genommen und mit positivem Ergebnis messtechnisch charakterisiert. Damit wird erstmals die Realisierbarkeit mechanischer Antriebe für das Künstliche Akkommodationssystem nachgewiesen. Dr.-Ing. Thomas Martin promovierte am Karlsruher Institut für Technologie (KIT) über die Entwicklung von mikromechanischen Antrieben für das Forschungsprojekt »Künstliches Akkommodationssystem«. Heute ist er bei Roche in der Entwicklung von Automatisierungstechnik für die In-vitro-Diagnostik tätig.

Electroactivity in Polymeric Materials

Author: Lenore Rasmussen
Publisher: Springer Science & Business Media
ISBN: 1461408776
Format: PDF, ePub, Mobi
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Electroactivity in Polymeric Materials provides an in-depth view of the theory of electroactivity and explores exactly how and why various electroactive phenomena occur. The book explains the theory behind electroactive bending (including ion-polymer-metal-composites –IPMCs), dielectric elastomers, electroactive contraction, and electroactive contraction-expansion cycles. The book also balances theory with applications – how electroactivity can be used – drawing inspiration from the manmade mechanical world and the natural world around us.

Biomedical Applications of Electroactive Polymer Actuators

Author: Federico Carpi
Publisher: John Wiley & Sons
ISBN: 9780470744680
Format: PDF, Docs
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Giving fundamental information on one of the most promising families of smart materials, electroactive polymers (EAP) this exciting new titles focuses on the several biomedical applications made possible by these types of materials and their related actuation technologies. Each chapter provides a description of the specific EAP material and device configuration used, material processing, device assembling and testing, along with a description of the biomedical application. Edited by well-respected academics in the field of electroactive polymers with contributions from renowned international experts, this is an excellent resource for industrial and academic research scientists, engineers, technicians and graduate students working with polymer actuators or in the fields of polymer science.

Introduction to Nanoscience and Nanotechnology

Publisher: CRC Press
Format: PDF, ePub
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The maturation of nanotechnology has revealed it to be a unique and distinct discipline rather than a specialization within a larger field. Its textbook cannot afford to be a chemistry, physics, or engineering text focused on nano. It must be an integrated, multidisciplinary, and specifically nano textbook. The archetype of the modern nano textbook, Introduction to Nanoscience and Nanotechnology builds a solid background in characterization and fabrication methods while integrating the physics, chemistry, and biology facets. The remainder of this color text focuses on applications, examining engineering aspects as well as nanomaterials and industry-specific applications in such areas as energy, electronics, and biotechnology. Also available in two course-specific volumes: Introduction to Nanoscience elucidates the nanoscale along with the societal impacts of nanoscience, then presents an overview of characterization and fabrication methods. The authors systematically discuss the chemistry, physics, and biology aspects of nanoscience, providing a complete picture of the challenges, opportunities, and inspirations posed by each facet before giving a brief glimpse at nanoscience in action: nanotechnology. Fundamentals of Nanotechnology surveys the field’s broad landscape, exploring the physical basics such as nanorheology, nanofluidics, and nanomechanics as well as industrial concerns such as manufacturing, reliability, and safety. The authors then explore the vast range of nanomaterials and systematically outline devices and applications in various industrial sectors. Qualifying instructors who purchase either of these volumes (or the combined set) are given online access to a wealth of instructional materials. These include detailed lecture notes, review summaries, slides, exercises, and more. The authors provide enough material for both one- and two-semester courses.

The Mechanics and Physiology of Animal Swimming

Author: L. Maddock
Publisher: Cambridge University Press
ISBN: 9780521460781
Format: PDF, Mobi
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This volume brings together current research on a wide range of swimming organisms, with an emphasis on the biomechanics, physiology and hydrodynamics of swimming in or on water. Several chapters deal with different aspects of fish swimming, from the use of different 'gaits' to the operation of the locomotor muscles. All chapters are by recognised authorities in their different fields, and all are accessible to biologists interested in aquatic locomotion.