为了实现大功率、大振幅的超声振动输出，设计了一种新型的超磁致伸缩超声换能器，换能器的形状是一个窗形的结构，用ANSYS软件对设计的超磁致伸缩换能器进行动力学分析，验证了设计方法的有效性。采用ansoft Maxwell软件分别对窗形换能器和棒形换能器进行了磁分析，发现窗形换能器的磁路是一个闭合的磁路，漏磁较少。分别对窗形换能器和棒形换能器的阻抗和振幅进行测量。结果表明，窗形换能器和棒形换能器的谐振频率基本一致，窗形换能器的阻抗比棒形换能器的阻抗要小很多，但是在相同的驱动电压下，窗形换能器的平均振幅大约是棒形换能器平均振幅的1.5倍。窗形换能器的阻抗小、结构紧促、输出振幅大，是未来超磁致伸缩换能器发展的新方向。
Abstract
Here, in order to realize high-power and large amplitude ultrasonic vibration output, a new type of giant magneto-strictive ultrasonic transducer was designed.The shape of the transducer was a window structure.The dynamic analysis of the designed giant magneto-strictive transducer was performed with the finite element software ANSYS to verify the effectiveness of the design method.The software ansoft Maxwell was used to do magnetic analysis for window transducer and bar transducer, respectively.It was found that the magnetic circuit of window transducer is a closed one with less magnetic leakage.The impedance and amplitude of window transducer and bar transducer were measured, respectively.The results showed that resonant frequencies of the two transducers are basically the same, and the impedance of window transducer is much smaller than that of bar transducer; under the same driving voltage, the average amplitude of window transducer is about 1.5 times of that of bar transducer; window transducer has advantages of small impedance, compact structure and large output amplitude, it is a new development direction of giant magneto-strictive transducer in future.
关键词
超磁致伸缩材料 /
超声换能器 /
窗形换能器 /
仿真分析
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Key words
giant magneto-strictive materials /
ultrasonic transducer /
window transducer /
simulation analysis
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参考文献
［1］OLABI A G, GRUNWALD A.Design and application of magnetostrictive materials［J］.Materials & Design, 2008, 29(2): 469-483.
［2］LIU H F, WANG S J, ZHANG Y, et al.Study on the giant magnetostrictive vibration-power generation method for battery-less tire pressure monitoring system［J］.Journal of Mechanical Engineering Science, 2015, 229(9): 1639-1651.
［3］KARUNANIDHI S, SINGAPERUMAL M.Design, analysis and simulation of magnetostrictive actuator and its application to high dynamic servo valve［J］.Sensors and Actuators: A Physical, 2010, 157(11):185-197.
［4］JAAMMALAMADAKA S N, MARKANDEYULU G, KANNAN E.Development of a magetnetostrictive transducer for nondestructive testing of concrete structures［J］.Applied Physics Letters, 2008,92(4):044102.
［5］LI P Y, LIU Q, LI S J, et al.Design and numerical simulation of novel giant magnetostrictive ultrasonic transducer［J］.Results in Physics, 2017, 7:3946-3954．
［6］FANG X S, ZHANG Q J, ZHAO H L, et al.The design of rare-earth giant magnetostrictive ultrasonic transducer and experimental study on its application of ultrasonic surface strengthening［J］.Micromachines, 2018, 9(3):98.
［7］CAI W C, ZHANG J F, YU D, et al.Research on the electromechanical conversion efficiency for giant magnetostrictive ultrasonic machining system［J］.Journal of Mechanical Engineering, 2017, 53(19):52-58.
［8］SHEYKHOLESLAMI M, GHODSI M, HOJJAT Y, et al.On the use of giant magnetostrictive materials in sonic transducers for liquid atomizers［C］∥SPIE Smart Structures and Materials+Nondestructive Evaluation and Health Monitoring.Las Vegas: SPIE Digital Library, 2016.
［9］AL-JUBOORI R A, BOWTELL L A, YUSAF T, et al.Insights into the scalability of magnetostrictive ultrasound technology for water treatment applications［J］.Ultrasonics Sonochemistry, 2016, 28:357-366.
［10］BUTLER S C.2.5 kHz magnetostrictive Tonpilz sonar transducer design［J］.Journal of the Acoustical Society of America, 2001, 109(5):510-520.
［11］BASUMATARY H, PALIT M, CHELVANE J A, et al.Design and fabrication of Tonpilz type acoustic transducer using grain oriented Tb-Dy-Fe magnetostrictive material［C］∥Ocean Electronics.Kochi: IEEE, 2014.
［12］孟爱华,杨剑锋,蒋孙权,等.柱棒式超磁致伸缩能量收集器的设计与实验［J］.振动与冲击,2017,36（12）:175-180.
MENG Aihua, YANG Jianfeng, JIANG Sunquan, et al.Design and experiments of a column giant magnetostrictive energy harvester［J］.Journal of Vibration and Shock, 2017,36(12):175-180.
［13］GUO J, MORITA S Y, HARA M, et al.Ultra-precision finishing of micro-aspheric mold using a magnetostrictive vibrating polisher［J］.CIRP Annals-Manufacturing Technology, 2012, 61(1):371-374.
［14］UENO T, HIGUCHI T, SAITO C, et al.Micromagnetostrictive vibrator using a U-shaped core of Iron-Gallium alloy (Galfenol)［J］.Journal of Applied Physics, 2008, 103(7): 07E904.
［15］PAN Y Z, MO X P, LI Y M, et al.A magnetostrictive underwater transducer directly driven by Iron-Gallium alloy (Galfenol) without bias magnetic field［C］∥OCEANS 2015-MTS/IEEE Washington.Washington :IEEE, 2016.
［16］LI Y F, HUANG W M, WANG B W, et al.Research of a double-Galfenol-rods magnetostrictive transducer［C］∥2017 20th International Conference on Electrical Machines and Systems.Sydney: ICEMS,2017.
［17］WOO J, ROH Y, KANG K, et al.P2O-7 design and construction of an acoustic horn for high power ultrasonic transducers［C］∥2016 IEEE Ultrasonics Symposium.Vancouver: IEEE, 2006.
［18］HE X P, ZHANG P.A new calculation method for the number of radial slots of a terfenol rod［J］.Science in China Series E: Technological Sciences,2009, 52(2):336-338.
［19］黄其圣.磁致伸缩式换能器谐振频率的计算［J］.合肥工业大学学报(自然科学版), 1995(4):80-84.
HUANG Qisheng.The calculation of the resonant frequency of the magnetoconstrictive transducer［J］.Journal of Hefei University of Technology(Natural Science), 1995(4):80-84.
［20］刘强, 李鹏阳, 许光耀, 等.超磁致伸缩超声换能器的磁路优化设计［J］.北京航空航天大学学报, 2019, 45（8）：1639-1645.
LIU Qiang, LI Pengyang, XU Guangyao, et al.Optimization and design for magnetic circuit in giant magnetostrictive ultrasonic transducer［J］.Journal of Beijing University of Aeronautics and Astronautics, 2019, 45(8):1639-1645.
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