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Authors: Roberto Romano and Eduardo Aoun Tannuri

Affiliation: Escola Politécnica da Universidade de São Paulo, Brazil

Keyword(s): Modeling, shape memory alloy, actuator, robotics, sliding mode control.

Related Ontology Subjects/Areas/Topics: Biomechanical Devices ; Biomedical Engineering ; Biomedical Instruments and Devices ; Biorobotics ; Transducers and Packaging

Abstract: The present paper presents the development of a mechanical actuator using a shape memory alloy with a novel cooling system based on the thermo-electric effect (Seebeck-Peltier effect). Such a method has the advantage of reduced weight and requires a simpler control strategy as compared to other forced cooling systems. A complete mathematical model of the actuator was derived, and an experimental prototype was implemented. Several experiments are used to validate the model and to identify all parameters. A robust and nonlinear controller, based on sliding-mode theory, was derived and implemented. Experiments were used to evaluate the actuator closed-loop performance, stability, and robustness properties. The results showed that the proposed cooling system is able to improve the dynamic response of the actuator.

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Paper citation in several formats:
Romano, R. and Aoun Tannuri, E. (2008). NEW DEVELOPMENT ON SHAPE MEMORY ALLOYS ACTUATORS. In Proceedings of the First International Conference on Biomedical Electronics and Devices (BIOSTEC 2008) - Volume 2: BIODEVICES; ISBN 978-989-8111- 17-3; ISSN 2184-4305, SciTePress, pages 55-61. DOI: 10.5220/0001047800550061

@conference{biodevices08,
author={Roberto Romano. and Eduardo {Aoun Tannuri}.},
title={NEW DEVELOPMENT ON SHAPE MEMORY ALLOYS ACTUATORS},
booktitle={Proceedings of the First International Conference on Biomedical Electronics and Devices (BIOSTEC 2008) - Volume 2: BIODEVICES},
year={2008},
pages={55-61},
publisher={SciTePress},
organization={INSTICC},
doi={10.5220/0001047800550061},
isbn={978-989-8111- 17-3},
issn={2184-4305},
}

TY - CONF

JO - Proceedings of the First International Conference on Biomedical Electronics and Devices (BIOSTEC 2008) - Volume 2: BIODEVICES
TI - NEW DEVELOPMENT ON SHAPE MEMORY ALLOYS ACTUATORS
SN - 978-989-8111- 17-3
IS - 2184-4305
AU - Romano, R.
AU - Aoun Tannuri, E.
PY - 2008
SP - 55
EP - 61
DO - 10.5220/0001047800550061
PB - SciTePress

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