New development on shape memory alloys actuators

被引：0

作者：

Romano, Roberto ^{[1
]}

Tannuri, Eduardo Aoun ^{[1
]}

机构：

[1] Univ Sao Paulo, Inst Pesquisas Tecnol Estado Sao Paulo, Escola Politecnica, Sao Paulo, Brazil

来源：

BIODEVICES 2008: PROCEEDINGS OF THE FIRST INTERNATIONAL CONFERENCE ON BIOMEDICAL ELECTRONICS AND DEVICES, VOL 2 | 2008年

关键词：

modeling; shape memory alloy; actuator; robotics; sliding mode control;

D O I：

暂无

中图分类号：

TP [自动化技术、计算机技术];

学科分类号：

0812 ;

摘要：

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.

引用

页码：55 / +

页数：2

共 12 条

[1] Differential hysteresis modeling of a shape memory alloy wire actuator [J].

Dutta, SM ;

Ghorbel, FH .

IEEE-ASME TRANSACTIONS ON MECHATRONICS, 2005, 10 (02) :189-197

[2] Nonlinear control of a shape memory alloy actuated manipulator [J].

Elahinia, MH ;

Ashrafiuon, H .

JOURNAL OF VIBRATION AND ACOUSTICS-TRANSACTIONS OF THE ASME, 2002, 124 (04) :566-575

[3]

Ikuta K., 1991, Proceedings. IEEE Micro Electro Mechanical Systems. An Investigation of Micro Structures, Sensors, Actuators, Machines and Robots (Cat. No.91CH2957-9), P103, DOI 10.1109/MEMSYS.1991.114778

[4]

Slotine J. J. E., 1991, APPL NONLINEAR CONTR

[5]

[No title captured]

[6]

[No title captured]

[7]

[No title captured]

[8]

[No title captured]

[9]

[No title captured]

[10]

[No title captured]

← 1 2 →