Page 67 - 《应用声学》2020年第5期

第 39 卷 第 5 期 Vol. 39, No. 5
2020 年 9 月 Journal of Applied Acoustics September, 2020

⋄ 研究报告 ⋄

复式降噪块地铁车轮减振降噪特性

唐 昭 张学飞 王瑞乾 †

(常州大学机械工程学院 常州 213164)

摘要：为探究一种复式降噪块装置及其组合形式对某 S 型辐板地铁车轮的减振降噪效果和机理，在半消声室
内，分别对 1 种自由状态下的标准车轮和 3 种形式的复式降噪块车轮开展阻尼特性及振动声辐射特性试验，并
通过有限元建模对其进行了模态计算。结果表明：复式降噪块装置可在全频段内提高车轮阻尼比，并对车轮各
部位有良好的减振效果，以轮辋和踏面的减振效果最为显著；其中，6 个制振阻尼片形式的降噪块对车轮的降
噪效果最显著，径向激励下的降噪量为 13.1 dB(A)，轴向激励下的降噪量为 11.1 dB(A)，降噪频段主要集中在
1000 Hz 以上中高频。该文研究结果是对列车降噪研究领域的补充和发展。
关键词：地铁车轮；复式降噪块；减振降噪；有限元分析
中图法分类号: U270 文献标识码: A 文章编号: 1000-310X(2020)05-0709-07
DOI: 10.11684/j.issn.1000-310X.2020.05.008

The characteristics of vibration and noise reduction of metro wheel with
compound noise reduction block

TANG Zhao ZHANG Xuefei WANG Ruiqian

(School of Mechanical Engineering, Changzhou University, Changzhou 213164, China)

Abstract: In order to explore the effect and mechanism of vibration and noise reduction of a kind of compound
noise reduction block device and its combination on a S-shaped spoke metro wheel, in the semi anechoic
chamber, the vibration and sound radiation characteristics, together with damping characteristics, of a standard
wheel which is in a free state and three kinds of wheels which are equipped with compound noise reduction block
are tested respectively. The modal calculation is carried out by finite element model. The results show that,
the compound noise reduction block device can increase the wheel damping ratio in the whole frequency band
and it has good damping effect on all parts of the wheel, especially on the rim and tread. Among them, the
noise reduction block in the form of six damping plates has the most significant noise reduction effect on wheels.
The noise reduction under radial excitation is 13.1 dB(A), and that under axial excitation is 11.1 dB(A). The
noise reduction frequency band is mainly concentrated in the medium and high frequency above 1000 Hz. The
result of this paper is a supplement and development to the field of noise reduction research on rail transit.
Keywords: Metro wheel; Compound noise reduction block; Vibration and noise reduction; Finite element
analysis

2020-01-04 收稿; 2020-04-26 定稿
作者简介: 唐昭 (1995– ), 男, 江苏兴化人, 硕士研究生, 研究方向: 振动与噪声控制。
† 通信作者 E-mail: ruiquanwang@163.com