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ABSTRACT
The electrodynamic effects, based upon the interaction of electromagnetic sources are the most widely used solutions in the designing of electro-mechanical actuators. However, the choice to utilize the deformations produced within certain types of materials, so called electro active, has become an increasingly reliable alternative, particularly in the case of distributed mechanical actions. this article presents the designing and dimensioning elements of the actuator, according to mechanical and thermal constraints. The electronic supply strategies used for the operation of the various structures are then detailed.
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Read the articleAUTHORS
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Bertrand NOGAREDE: University Professor at the Institut polytechnique de Toulouse INPT/École nationale supérieure d'électrotechnique, d'électronique, d'informatique, d'hydraulique et des télécommunications ENSEEIHT
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Carole HÉNAUX: Senior Lecturer at Toulouse Polytechnic Institute INPT/École nationale supérieure d'électrotechnique, d'électronique, d'informatique, d'hydraulique et des télécommunications ENSEEIHT
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Jean-François ROUCHON: Senior Lecturer at Toulouse Polytechnic Institute INPT/École nationale supérieure d'électrotechnique, d'électronique, d'informatique, d'hydraulique et des télécommunications ENSEEIHT
INTRODUCTION
Electromechanical actuator technology is based on a wide variety of physical processes. While electrodynamic effects, based on the interaction of electromagnetic fields and sources, provide the most conventional solutions for producing force or motion from a source of electrical energy, the idea of using the deformations produced within certain types of materials, known as electroactive materials, is an increasingly credible alternative, particularly in the case of distributed electromechanical actions (intelligent structures).
Based on the classification of processes and structures set out in the previous dossier
The elements of actuator design and dimensioning are the subject of the first part. The electronic power supply techniques used to drive the various inductive or capacitive armature structures are then examined. Finally, the control laws used to control the actuator according to different strategies (speed position or force control) are the subject of the last part (see files on asynchronous machines
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...Events
ICEM'08 XVIII International Conference on Electrical Machine, Vilamoura, Portugal, September 2008.
ACTUATOR 08 International Conference and Exhibition on New Actuators and Drive Systems, Bremen, Germany, June 2008.
MSM 2007 3rd International Conference Mechatronic Systems and Materials, Kaunas.
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