[1]耿 卓,张学飞.高速列车车身结构声振特性分析[J].常州大学学报(自然科学版),2018,30(04):64-68.[doi:10.3969/j.issn.2095-0411.2018.04.011]
 GENG Zhuo,ZHANG Xuefei.Analysis on Acoustic and Vibration Characteristics of CRH380B Series High-Speed Trains Sightseeing Area[J].Journal of Changzhou University(Natural Science Edition),2018,30(04):64-68.[doi:10.3969/j.issn.2095-0411.2018.04.011]
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高速列车车身结构声振特性分析()
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常州大学学报(自然科学版)[ISSN:2095-0411/CN:32-1822/N]

卷:
30
期数:
2018年04期
页码:
64-68
栏目:
机械制造及其自动化
出版日期:
2018-07-28

文章信息/Info

Title:
Analysis on Acoustic and Vibration Characteristics of CRH380B Series High-Speed Trains Sightseeing Area
作者:
耿 卓张学飞
常州大学 城市轨道交通学院,江苏 常州 213164
Author(s):
GENG Zhuo ZHANG Xuefei
School of Urban Rail Transit, Changzhou University, Changzhou 213164, China
关键词:
高速列车 振动噪声 结构传声 车轮多边形 声学模态
Keywords:
high-speed train vibration and noise structure transmission acoustic modal wheel polygon
分类号:
U 270.1,U 238
DOI:
10.3969/j.issn.2095-0411.2018.04.011
文献标志码:
A
摘要:
通过现场测试,并按相关标准规定对测试结果进行了分析,明确了列车以300 km/h匀速运行时车体内外振动噪声的动态特性。试验中发现观光区噪声在127 Hz和572 Hz均存在显著波峰,针对这一问题,对观光区内及下方转向架区域进行振动噪声频谱特性分析,结果表明,结构传声是观光区在127 Hz和572 Hz处出现局部峰值的主要传递路径之一。列车以300 km/h匀速运行时,观光区噪声在127 Hz频率处的显著波峰由列车过枕轨激励产生,车体系统的结构振动与车内声学空腔存在相互耦合关系,最终导致车室内在127 Hz附近存在显著峰值。观光区噪声在572 Hz频率处的显著波峰与车轮20阶多边形有关,如需进一步确定还需对车辆进行车轮不圆度测试。
Abstract:
Through a field test and an analysis of the test results based on relevant standards, the dynamic characteristics of the inside and outside vibration and noise of the train at a uniform speed of 300 km/h are clarified. It is found that there are significant peak at 127 Hz and 572 Hz, respectively. Aiming at these findings, the vibration and noise spectrum characteristics of bogies inside and outside the sightseeing area are analyzed. The results show that the structural transmission is one of the main transmission paths of local peaks at 127 Hz and 572 Hz in the sightseeing area. When the train is running at the uniform speed of 300 km/h, a significant peak of noise at the frequency of 127 Hz is generated by the train’s trajectory and the structural vibration of the vehicle body is coupled with the acoustic cavity in the train, which eventually leads to a significant peak at the frequency of 127Hz in the sightseeing area. The significant peak at the frequency of 572 Hz is related to the 20-step polygon of the wheel. For further determination, it is necessary to hold a test on wheel roundness.

参考文献/References:


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备注/Memo

备注/Memo:

作者简介:耿卓(1993—),男,黑龙江齐齐哈尔人,硕士生。通讯联系人:张学飞(1965—),E-mail:1759247628@qq.com
更新日期/Last Update: 2018-07-30