本文研制了一种窗型结构（双棒结构）超磁致伸缩换能器。等效电路法设计了换能器，以输出端振幅最大、稀土棒内磁场均匀和棒内小峰值应力为目标，有限元方法优化了其结构尺寸，并仿真计算了阻抗圆、输出端振幅随激励电流变化的规律，以及工作频率点处温升与时间的关系。测试了换能器样品，结果表明：测试频率为19.64kHz，设计值为19.45kHz；1A激励电流的位移振幅测试值为6.1m，计算值为6.3m；电声效率测试值为52.58%，计算值为41.51%；实验测试1A电流工作15分钟后温度升为45.5℃，仿真计算的温度升为47.8℃。实验测试与理论计算基本吻合。
Abstract
A window structure (double rare earth rods structure) giant magnetostrictive transducer is developed. The transducer was designed by the equivalent circuit method. In order to get the maximum amplitude of the vibration output end, the uniformity of the magnetic field in the rare earth rod and the small peak stress rare earth rods, the structure size of the transducer was optimized by the finite element method. The impedance circle and the amplitude of the output end of the transducer were simulated and calculated with the increase of the excitation current, and the relationship between the temperature rise and time at the operating frequency was also calculated. The test results of the fabricated transducer show that the measured value is 19.64 kHz, the design frequency is 19.45 kHz; the experimental test displacement amplitude is 6.1 m at 1A excitation current, and the calculated value is 6.3 m; the tested value of electro-acoustic efficiency is 52.58%, and the calculated value is 41.51%. After 15 minutes of transducer operation under 1A excitation current, the temperature rises to 45.5 °C by tested, while the simulation calculation temperature rise is 47.8°C. The experimental tested is in good agreement with the theoretical simulation calculated.
关键词
窗型结构 /
超磁致伸缩换能器 /
等效电路 /
仿真计算 /
温升
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Key words
window structure /
giant magnetostrictive transducer /
equivalent circuit /
simulation calculation /
temperature rise
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参考文献
[1] Li Z , Su C Y , Chai T .Compensation of Hysteresis Nonlinearity in Magnetostrictive Actuators With Inverse Multiplicative Structure for Preisach Model[J].IEEE Transactions on Automation Science & Engineering, 2014, 11(2):613-619.
[2] Zhu Y , Ji L .Theoretical and experimental investigations of the temperature and thermal deformation of a giant magnetostrictive actuator[J].Sensors & Actuators A Physical, 2014, 218:167-178.
[3] Zhang T , Yang B T , Li H G ,et al.Dynamic modeling and adaptive vibration control study for giant magnetostrictive actuators[J].Sensors & Actuators A Physical, 2013, 190:96-105.
[4] Arani A G , Maraghi Z K .A feedback control system for vibration of magnetostrictive plate subjected to follower force using sinusoidal shear deformation theory[J].Ain Shams Engineering Journal, 2016, 7(1).
[5] Xue G , He Z , Li D ,et al.Analysis of the giant magnetostrictive actuator with strong bias magnetic field[J].Journal of Magnetism and Magnetic Materials, 2015, 394:416-421.
[6] Lovisolo A , Roccato P E , Zucca M .Analysis of a magnetostrictive actuator equipped for the electromagnetic and mechanical dynamic characterization[J].Journal of Magnetism & Magnetic Materials, 2008, 320(20):e915-e919.
[7] Liu H , Wang S , Zhang Y ,et al.Study on the giant magnetostrictive vibration-power generation method for battery-less tire pressure monitoring system[J].ARCHIVE Proceedings of the Institution of Mechanical Engineers Part C Journal of Mechanical Engineering Science, 2015, 229(9):1639-1651.
[8]S,Karunanidhi,and,et al.Design, analysis and simulation of magnetostrictive actuator and its application to high dynamic servo valve[J].Sensors and Actuators A: Physical, 2010, 157(2):185-197.
[9] Olabi A G , Grunwald A .Design and application of magnetostrictive materials[J].Materials & Design, 2008, 29(2):469-483.
[10] 许龙，张丹，陈一博. 四激励二维正交复合夹心式压电超声换能器的设计[J].声学学报, 2023, 48(04):882-889.
XU Long，ZHANG Dan，CHEN Yibo，et al. Design of 2D orthogonal composite sandwich piezoelectric ultrasonic transducer excited by four piezoelectric stacks[J]. ACTA ACUSTICA,2023,48(04) :882-889.
[11] Guo J , Suzuki H , Morita S Y ,et al.A real-time polishing force control system for ultraprecision finishing of micro-optics[J].Precision Engineering, 2013, 37(4):787-792.
[12] 赵佳恒,莫喜平,柴勇,等. 铁镓单晶Janus-Helmholtz换能器[J].声学学报, 2023, 42(1):93-101.
ZHAO Jiaheng，MO Xiping，CHAI Yong，et al. Fe-Ga single crystal Janus-Helmholtz transducer[J].ACTA ACUSTICA, 2023, 42(1):93-101.
[13] 柴勇,莫喜平,刘永平,等.磁致伸缩-压电联合激励凹简型发射换能器[J].声学学报, 2006, 31(6):523-526.
CHAI Yong，MO Xiping，LIU Yongping，et al. A hybrid magnetostrictive-piezoelectric barrel-stave projector[J]. ACTA ACUSTICA, 2006, 31(6):523-526.
[14] 鞠晓君,林明星,范文涛,等.超磁致伸缩致动器结构分析及输出力特性研究[J].仪器仪表学报, 2017, 38(5):9.
JU Xiaojun，LIN Mingxing，FAN Wentao，et al. Structure analysis and output force characteristic study of giant magnetostrictive actuator[J]. Chinese Journal of Scientific Instrument, 2017, 38(5):9.
[15] Noh M D , Park Y W .Topology selection and design optimization for magnetostrictive inertial actuators[J].Journal of Applied Physics, 2012.
[16] 刘强,贺西平.不同结构Terfenol-D棒的高频振动性能研究[J].振动与冲击, 2023, 42(2):244-250.
LIU Qiang，HEXiping. High frequency vibration performances of Terfenol-D rods with different structures[J]. Journal of Vibration and Shock, 2023, 42(2):244-250.
[17] Liu Q , He XP. Magnetic circuit optimization design and thermal analysis of the giant magnetostrictive transducer [J]. Ultrasonics,2023,133:107031.
[18] Li M F , Xiang Z Q , Lu F Z .Magnet circuit design and optimization of giant magnetostrictive transducer[J].Journal of Zhejiang University(Engineering Science), 2006, 9(1):11-104.
[19] 周辉林,张建富,冯平法,等.超磁致伸缩超声振子预紧特性对输出振幅的影响规律[J].吉林大学学报：工学版, 2020, 50(3):894-902.
ZHOU Huilin，ZHANG Jianfu，FENG Pingfa，et al. Investigation on influence of preload characteristics on output
amplitude for giant magnetostrictive ultrasonic vibrator[J]. Journal of Jilin University ：Engineering and Technology Edition, 2020, 50(3):894-902.
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