| 吴豪琼,高志强.斜槽式单激励纵扭超声变幅杆设计*[J].,2022,41(4):620-625 |
| 斜槽式单激励纵扭超声变幅杆设计* |
| The design of multiple diagonal slits ultrasonic horn with single-excitation longitudinal-torsional vibration |
| 投稿时间：2021-12-13 修订日期：2022-06-27 |
| 中文摘要: |
| 为实现在纵向单激励超声振动输入条件下获得纵扭谐振输出，提出一种基于声波传播理论为基础设计阶梯型变幅杆，并在其小端增加沿中心轴均布6斜槽的圆环传振杆的方案：首先数值计算进行理论设计，然后使用有限元进行分析修正，最后确定变幅杆尺寸。结果表明：理论设计谐振频率20kHz，仿真分析在19457Hz时变幅杆能够实现纵扭谐振；根据仿真结果制作变幅杆，阻抗测试结果谐振频率为19884Hz，与理论值、仿真值误差较小；在输入端加载幅值为5μm的纵向单激励超声振动，测试输出端截面圆周上任意一点，其切向和纵向振幅分别为12.7μm和8.5μm，表明变幅杆实现了纵扭谐振且振幅增强。 |
| 英文摘要: |
| In order to obtain the longitudinal torsional resonance output under the condition of single longitudinal excitation ultrasonic vibration input, based on the sound wave propagation theory, the stepped horn adding a ring vibration transmitting rod with 6 multiple diagonal slits along the central axis: firstly, the theoretical design is carried out by numerical calculation, then the finite element method is used for analysis and correction,finally, the size of the horn is determined.The results show that the theoretical design resonant frequency is 20kHz, simulation analysis shows that the horn can realize longitudinal torsional resonance at 19457Hz;The horn is made according to the simulation results,The resonance frequency of impedance test results is 19884Hz, it has little error with theoretical value and simulation value; The 5μm loading amplitude at the input of the horn, test any point on the section circumference of the output end,its tangential and longitudinal amplitudes are 12.7 μm and 8.5μm,which shows that the horn realizes the longitudinal torsional resonance output and the amplitude is strengthened. |
| DOI：10.11684/j.issn.1000-310X.2022.04.014 |
| 中文关键词: 纵-扭谐振 6斜槽 有限元分析 阻抗测试 振幅测试 |
| 英文关键词: Longitudinal-torsional vibration 6 multiple diagonal slits Finite element analysis Impedance test Amplitude test |
| 基金项目:国家自然科学基金项目 |
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