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Selected Works

Christopher Cook

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Full-Text Articles in Engineering

Study Of Actuator Technologies For A Miniature Distributed, Fazel Naghdy, P Wong, P Carter, N Laszlo, Christopher D. Cook Aug 2012

Study Of Actuator Technologies For A Miniature Distributed, Fazel Naghdy, P Wong, P Carter, N Laszlo, Christopher D. Cook

Christopher Cook

Disnibuted Manipulation Environment (DME), is a concept based on the overall modularity of a manufacturing system including actuation, sensing, control, computing hardware and software. The basic building block of DME is the Manipulation Module (MM). Each MM may consist of up to three units including processing the unit, actuating unit and sensory unit. The emphasis of this paper is on the actuating unit of the Manipulation Modules used in DME. The generic features of the actuators suitable for this application are discussed and a review of the motion producing characteristics of the following actuator technologies is presented: electrostatic, electromagnetic, fluid …


Viscoelastic Study Of Conducting Polymers Using Quartz Crystal Microbalance, Mehrdad Bahrami Samani, Philip G. Whitten, Geoffrey M. Spinks, Christopher David Cook Aug 2012

Viscoelastic Study Of Conducting Polymers Using Quartz Crystal Microbalance, Mehrdad Bahrami Samani, Philip G. Whitten, Geoffrey M. Spinks, Christopher David Cook

Christopher Cook

Application of conducting polymers has been growing widely in different fields such as batteries, solar cells, capacitors and actuators. Mechanical properties of conducting polymers like flexibility, high power to mass ratio and high active strain make them potentially applicable to robotic and automation industries. Obviously, a dynamic model of the actuation phenomenon in conducting polymers is needed to study its controllability and also to optimize the mechanical performance. De Rossi and colleagues suggest treating the mechanical behaviour of conducting polymers separately from the viscoelastic structural model and electrochemical actuation[1]. But it has been observed that the effects of electrochemical actuation …