| 常钦,王晓振,吴鹏飞,林伟军.一种声悬浮换能器的辐射头结构参数优化分析*[J].,2025,43(3):807-814 |
| 一种声悬浮换能器的辐射头结构参数优化分析* |
| An optimization analysis for the horn structural parameters of an acoustic levitation transducer |
| 投稿时间：2024-01-22 修订日期：2025-04-25 |
| 中文摘要: |
| 声操控技术可以对高温熔融物进行非接触式的悬浮与检测。通常要求悬浮节点尽量远离换能器，以便留出空间安装各类检测设备。本文针对该需求，为了解决对换能器距离增加且调节范围受限导致悬浮能力下降的问题，提出了一种仅通过改良变幅杆几何外形即可提高换能器远距离悬浮性能的优化策略。本文利用有限元方法对不同参数组合的变幅杆进行振动模态仿真，得到了组合中最优的变幅杆几何设计，并通过对数值结果的进一步地分析，解释了参数影响变幅杆优化的机理。 |
| 英文摘要: |
| The acoustic manipulation is an effective approach to achieve the non-contact manipulation and the detection of molten materials in the core. It requires that the node should be far from the transducer to vacate enough space for the detection equipment. To improve the instability for levitation ability caused by limitations of the long distance, we propose an optimization for geometric parameters of the ultrasonic horn. We simulate the vibration modes of the ultrasonic horns with different geometric parameters by finite element method and get the optimal geometric parameters of the ultrasonic horn. The numerical results indicate that the high-order bending vibration mode in the ultrasonic horn changes the distribution of the sound field and promotes the levitation stability by enhancing the acoustic radiation force. |
| DOI：10.11684/j.issn.1000-310X.2025.03.030 |
| 中文关键词: 声操控 稳定性 变幅杆 有限元 |
| 英文关键词: Acoustic manipulation Stability Ultrasonic horn Finite element method |
| 基金项目:中国科协青年人才托举工程项目（2022-2024QNRC001）、中科院基础前沿研究计划项目（ZDBS-LY-SLH037）资助 |
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