Abstract
Exiting coil as the center of the electromagnetism conversion is mainly to provide driving magnetic field for the giant magnetostrictive actuator (GMA) and control its output displacement through inputting different current. Therefore, the structural parameters of the exiting coil are the key factors to improve the electromagnetic conversion efficiency and make GMA effect sufficiently. This paper designs and optimizes parameters of the exiting coil according to the designing principles that are high uniformity and intensity of the magnetic field near giant magnetostriction materials (GMM) rod, minimum heat loss and compact-sized through analyzing the working conditions of the GMA. Then, the magnetic circuit with the optimized excitation coil is analyzed based on Ansoft. The result indicates that the distribution of magnetic field is more uniform and the uniformity rate is raised to be 99.35%.
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Gao, X., Liu, Y., Pei, Z. (2015). Optimization and Design of Exiting Coil in Giant Magnetostrictive Actuator. In: Liu, H., Kubota, N., Zhu, X., Dillmann, R., Zhou, D. (eds) Intelligent Robotics and Applications. ICIRA 2015. Lecture Notes in Computer Science(), vol 9244. Springer, Cham. https://doi.org/10.1007/978-3-319-22879-2_18
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DOI: https://doi.org/10.1007/978-3-319-22879-2_18
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