Research on Acoustic Characteristics of the Damping Sound Insulation Structure for Dry Distribution Transformer Shell

WU Wengeng; CHEN Bingbin; GAO Xu; FAN Chao; TIAN Yi; XIAO Weimin

doi:10.13296/j.1001-1609.hva.2026.06.008

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Research on Acoustic Characteristics of the Damping Sound Insulation Structure for Dry Distribution Transformer Shell

Research & Analysis | 更新时间：2026-06-10

- Research on Acoustic Characteristics of the Damping Sound Insulation Structure for Dry Distribution Transformer Shell
- High Voltage Apparatus Vol. 62, Issue 6, Pages: 70-75(2026)
- 作者机构：
  
  国网福州供电公司，福州 350009
  全球能源互联网研究院有限公司，北京 102211
  北京市劳动保护科学研究所，北京 100055
- 作者简介：
- 基金信息：
- DOI：10.13296/j.1001-1609.hva.2026.06.008
  CLC：
- Received：02 December 2025，
  
  Revised：2026-02-10，
  
  Published：16 June 2026
- 稿件说明：
移动端阅览
WU Wengeng, CHEN Bingbin, GAO Xu, et al. Research on Acoustic Characteristics of the Damping Sound Insulation Structure for Dry Distribution Transformer Shell[J]. High Voltage Apparatus, 2026, 62(6): 70-75.
DOI：

WU Wengeng, CHEN Bingbin, GAO Xu, et al. Research on Acoustic Characteristics of the Damping Sound Insulation Structure for Dry Distribution Transformer Shell[J]. High Voltage Apparatus, 2026, 62(6): 70-75. DOI： 10.13296/j.1001-1609.hva.2026.06.008.

摘要

干式配电变压器噪声大，与居民距离近，易引起反感。为了有效降低配电变压器的噪声，文中针对配电变压器的噪声特性，开展了隔声材料声学结构仿真，发现增加阻尼层，尤其是采用约束阻尼隔声结构，可提升刚性隔声材料的隔声性能。并在此基础上，开展了不同结构参数约束阻尼隔声结构声学测试分析，结果表明：刚性材料对约束阻尼隔声结构的影响极大，随着刚性材料厚度的增加，隔声性能明显增大，但增大幅值逐渐减小；阻尼材料也可提升约束阻尼隔声结构的隔声性能，且随阻尼材料损耗因子的增加，隔声性能随之增大，随阻尼材料厚度的增加，低频段和高频段隔声性能得到改善，还将共振频率和临界吻合频率调整至更高频段。

Abstract

Dry distribution transformer is noisy and close to residents as well as prone to their dislike. For reducing effectively the noise of distribution transformer

the acoustic structure simulation of sound insulation materials based on the noise characteristics of distribution transformers is performed in this paper. It is found that the sound insulation performance of rigid sound insulation materials can be improved by adding damping layer

with adoption of constrained damping sound insulation structure in particular. On this basis

the acoustic test analysis of the damping sound insulation structure with different structural parameters constraints is performed. It is shown by the result that the rigid material has great influence on constrained damping sound insulation structures.With the increase of the rigid material thickness

the sound insulation performance increases obviously

but the increase amplitude decreases gradually.And the damping material can also improve the sound insulation performance of constrained damping structures. With the increase of the damping material loss factor

the sound insulation performance increases. With the increase of the damping material thickness

the sound insulation performance of low and high frequency band is improved

and the resonant frequency and critical coincidence frequency are adjusted to a higher band.

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references

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