| 弓张式GMM发音振子径向磁场仿真分析 |
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| 引用本文： | 赵正龙,何忠波,李冬伟,薛光明,杨朝舒. 弓张式GMM发音振子径向磁场仿真分析[J]. 压电与声光, 2015, 37(4): 672-675 |
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| 作者姓名： | 赵正龙 何忠波 李冬伟 薛光明 杨朝舒 |
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| 作者单位： | (军械工程学院 车辆与电气工程系，河北 石家庄 050003) |
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| 基金项目： | 国家自然科学基金资助项目(51275525) |
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| 摘 要： | 超磁致伸缩材料(GMM)发音振子是骨传导听觉装置的核心部件,该文提出了一种弓张式的GMM发音振子结构,并利用ANSYS软件对其内部磁场径向分布进行了有限元仿真和分析。结果表明,振子中间部分磁场强度和均匀性最好,弓张结构磁导率的变化对两端磁场分布的均匀性影响较大,为满足磁场强度和均匀性要求,弓张结构应优先选用镍铁合金材料。
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| 关 键 词： | 弓张式 超磁致伸缩材料(GMM) 振子 径向磁场 仿真 |
Simulation Analysis of Radial Magnetic Field Distribution of GMM Pronunciation Vibrator with Bow type Structure |
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| ZHAO Zhenglong,HE Zhongbo,LI Dongwei,XUE Guangming and YANG Zhaoshu. Simulation Analysis of Radial Magnetic Field Distribution of GMM Pronunciation Vibrator with Bow type Structure[J]. Piezoelectrics & Acoustooptics, 2015, 37(4): 672-675 |
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| Authors: | ZHAO Zhenglong HE Zhongbo LI Dongwei XUE Guangming YANG Zhaoshu |
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| Affiliation: | (Dept. of Vehicles and Electrical Engineering Ordnance Engineering College,Shijiazhuang 050003,China) |
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| Abstract: | The giant magnetostrictive material(GMM) pronunciation vibrator is a core component of a bone conduction hearing device.A GMM pronunciation vibrator with bow type structure was proposed in this paper,the internal radial magnetic field distribution was simulated and analyzed using ANSYS.The simulation results indicate that the magnetic field strength and uniformity are best in the middle part.The uniformity of the magnetic field distribution is greatly affected by the bow type structure permeability in both ends. In order to meet the requirements for magnetic field strength and uniformity, the nickel iron alloy is preferred for bow type structure. |
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| Keywords: | bow type structure GMM vibrator radial magnetic field simulation |
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