[1]丁 杰,何艳飞,曾亚平,等. 地铁车辆辅助变流器的噪声测试及优化[J].机车电传动,2017,(05):1.[doi:10.13890/j.issn.1000-128x.2017.05.109]
 DING Jie,HE Yanfei,et al. Noise Test and Optimization of Auxiliary Converter for Metro Vehicle[J].Electric Drive for Locomotives,2017,(05):1.[doi:10.13890/j.issn.1000-128x.2017.05.109]
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 地铁车辆辅助变流器的噪声测试及优化()
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机车电传动[ISSN:1000-128X/CN:43-1125/U]

卷:
期数:
2017年05期
页码:
1
栏目:
城市轨道车辆
出版日期:
2017-09-10

文章信息/Info

Title:
 Noise Test and Optimization of Auxiliary Converter for Metro Vehicle
作者:
 丁 杰12何艳飞1曾亚平1邓创华1
 (1. 株洲中车时代电气股份有限公司 技术中心,湖南 株洲 412001;2. 湘潭大学 土木工程与力学学院,湖南 湘潭 411105)
Author(s):
 DING Jie 1 2 HE Yanfei1 ZENG Yaping1 DENG Chuanghua1
 ( 1. Technology Center, Zhuzhou CRRC Electric Times Co., Ltd., Zhuzhou, Hunan 412001, China;2. College of Civil Engineering and Mechanics, Xiangtan University, Xiangtan, Hunan 411105, China )
关键词:
 地铁车辆辅助变流器噪声噪声特性测试降噪优化
Keywords:
 metro vehicle auxiliary converter noise noise characteristics test noise reduction optimization
分类号:
TB535;U231;U264.5+4
DOI:
10.13890/j.issn.1000-128x.2017.05.109
文献标志码:
A
摘要:
 为降低某地铁车辆辅助变流器的噪声,通过不同工况的振动噪声测试,获得了辅助变流器的噪声特性,在此基础上进行了噪声传递路径分析、优化风道结构和风道消声处理。对比测试结果表明:风机高速整机满载工况下的噪声最大,风机低速整机空载工况的噪声较小;1 250 Hz以下的噪声以风机气动噪声为主,1 250 Hz~10 kHz频段范围内,机械性噪声和电磁噪声贡献较大;多个振动主峰值频率与噪声主峰值频率基本吻合,振动与噪声的相关性显著;风机高速整机满载工况下,各测点优化后的噪声值较优化前降低8.6~12.2 dB(A),取得了明显的降噪效果。
Abstract:
 In order to reduce the noise of auxiliary converter in metro vehicle, noise characteristics of the auxiliary converter were obtained through the vibration and noise test in different working conditions. Based above, the noise transfer path analysis, optimization of duct structure, and duct muffler treatment were carried out. With the results, it was shown that noise of the fan at full load and high speed was the highest, and the noise in idle condition and low speed was smaller. The noise below 1 250 Hz was mainly the aerodynamic noise of the fan. In the range of 1 250 Hz~10 kHz, mechanical noise and electromagnetic noise contributed the most. Many main peak frequencies of vibrations were basically consistent with those of the noise, correlation between vibration and noise was significant. At high-speed and full load, the noise values of the measured points in the fan reduced 8.6~12.2 dB (A) after optimization, which indicated that the noise reduction effect was significant.

参考文献/References:

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备注/Memo

备注/Memo:
 作者简介:丁 杰(1979-),男,博士研究生,高级工程师,主要研究方向为一般力学与力学基础、变流器结构仿真与热仿真。
更新日期/Last Update: 2017-09-08