Low-frequency broadband curved plate transducer with multi-point drive regulation

Qiumu WANG; Xiping MO; Yongping LIU; Rongyao YANG; Houqi WANG

doi:10.11990/jheu.202506050

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Low-frequency broadband curved plate transducer with multi-point drive regulation

Research Article | 更新时间：2026-03-31

- Low-frequency broadband curved plate transducer with multi-point drive regulation
- Journal of Harbin Engineering University Vol. 46, Issue 8, Pages: 1644-1649(2025)
- 作者机构：
  
  中国科学院声学研究所，北京 100190
- 作者简介：
- 基金信息：
- DOI：10.11990/jheu.202506050
  CLC： TB565
- Received：23 June 2025，
  
  Online First：26 June 2025，
  
  Published：05 August 2025
- 稿件说明：
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Qiumu WANG, Xiping MO, Yongping LIU, et al. Low-frequency broadband curved plate transducer with multi-point drive regulation[J]. Journal of Harbin Engineering University, 2025, 46(8): 1644-1649.
DOI：

Qiumu WANG, Xiping MO, Yongping LIU, et al. Low-frequency broadband curved plate transducer with multi-point drive regulation[J]. Journal of Harbin Engineering University, 2025, 46(8): 1644-1649. DOI： 10.11990/jheu.202506050.

摘要

针对稀土超磁致伸缩材料在低频领域的应用局限于弯张换能器的问题，本文提出一种可由稀土材料驱动的弯曲板换能器。通过在两短边固定的矩形薄板一侧铺设纵振动稀土棒材，驱动矩形薄板进行弯曲振动。利用有限元方法仿真分析，调整弯曲板多组驱动的幅度及相位等，高效激励矩形薄板的一阶弯曲振动，提高辐射能力。换能器样机尺寸：791 mm×227 mm×121 mm(长×宽×高)，一阶谐振频率130 Hz，对应发送电流响应级153 dB；二阶谐振峰450 Hz，对应发送电流响应级161.4 dB。本研究结果进一步拓展了稀土超磁致伸缩材料在低频领域的应用。

Abstract

To solve the problem that the application of rare earth giant magnetostrictive materials in the field of low frequency is limited to flextensional transducers

this paper proposes a flexure plate transducer that can be driven by rare earth materials. By laying longitudinal vibration rare earth rods on one side of the rectangular plate fixed on two short sides

the rectangular plate can be driven to bend. The finite element method is used to simulate and analyze the amplitude and phase of multiple groups of drives of large-size flexure plate

which can effectively excite the first-order flexure mode of rectangular plates and improve its radiation capacity. Transducer dimension: 791 mm× 227 mm×121 mm (length × width × height)

1st order response peak occurs at 130 Hz

corresponding to the transmitting current response value of 153 dB

2nd order resonance peak occurs at 450 Hz

corresponding to the transmitting current response value of 161.4 dB

this paper further expands the application of rare earth giant magnetostrictive materials in the field of low frequency.

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Keywords

references

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