Novel Design and Research for a High-retaining-force, Bi-directional, Electromagnetic Valve Actuator with Double-layer Permanent Magnets You, Jiaxin; Zhang, Kun; Zhu, Zhengwei; Liang, Huimin;
To increase the retaining force, a novel design for a concentric, bi-directional, electromagnetic valve actuator that contains double-layer permanent magnets is presented in this paper. To analyze the retaining-force change caused by the magnets, an equivalent magnetic circuit (EMC) model is established, while the EMC circuit of a double-layer permanent-magnet valve actuator (DLMVA) is also designed. Based on a 3D finite element method (FEM), the calculation model is built for the optimization of the key DLMVA parameters, and the valve-actuator optimization results are adopted for the improvement of the DLMVA design. A prototype actuator is manufactured, and the corresponding test results show that the actuator satisfies the requirements of a high retaining force under a volume limitation; furthermore, the design of the permanent magnets in the DLMVA allow for the attainment of both a high initial output force and a retaining force of more than 100 N.
magnetic-equivalent-circuit method;electromagnetic valve actuator;permanent magnet;finite element analysis;optimized design;
Y. Long, J. M, X. Chen, Q. Liang, Y. Shang, and S. Wang, J. Magn. 20, 1 (2015).
Z. Lan and S. Zhuang, J. Magnetic Materials and Devices 2, 68 (2012).
S. Karunanidhia and M. Singaperumalb, Sensors and Actuators A-Physical. 157, 2 (2010).
I. Yatchev, V. Gueorgiev, and K. Hinov, Int. J. Computation and Mathematics in Electrical and Electronic Engineering 28, 5 (2009).
Q. Li, Fan Ding, and C. Wang, IEEE Trans. Magn. 41, 6 (2005).
J. Kim and J. Chang, IEEE Trans. Magn. 43, 4 (2007).
Ji-Young Lee, Ji-Won Kim, and Byung-Chul Woo, J. Magn. 18, 2 (2013).
Y. P. Yang, J. J. Liu, D. H. Ye, Y. R. Chen, and P. H. Lu, IEEE/ASME Trans. on Mechatronics 18, 3 (2013).
Q. Li, F. Ding, and C. Wang, IEEE Trans. Magn. 41, 6 (2005).
J. Lee, E. M. Dede, D. Banerjee, and H. Lizuka, Finite Elements in Analysis and Design 58, (2012).
R. Olaru, C. Astratini-Enache, and C. Petrescu, Int. J. Applied Electromagnetics and Mechanics 38, 2 (2012).
J. B. Wang, K. Atallah, and W. Y. Wang, IEEE Trans. Magn. 47, 10 (2012).
M. Noh, M. J. Gi, D. Kim, Y.-W. Park, J. Lee, and J. Kim, J. Magn. 20, 1 (2015).