[1]宋庆伟,张大福,王建斌,等. 轴箱吊耳振动测试及共振疲劳评估[J].机车电传动,2019,(05):1.[doi:10.13890/j.issn.1000-128x.2019.05.112]
 SONG Qingwei,ZHANG Dafu,WANG Jianbin,et al. Vibration Testing and Resonance Fatigue Assessment of Axlebox Lifting Lug[J].Electric Drive for Locomotives,2019,(05):1.[doi:10.13890/j.issn.1000-128x.2019.05.112]
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 轴箱吊耳振动测试及共振疲劳评估()
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机车电传动[ISSN:1000-128X/CN:43-1125/U]

卷:
期数:
2019年05期
页码:
1
栏目:
城 市 轨 道 车 辆
出版日期:
2019-10-31

文章信息/Info

Title:
 Vibration Testing and Resonance Fatigue Assessment of Axlebox Lifting Lug
作者:
 宋庆伟1张大福2王建斌2邬平波2
 (1. 中车长春轨道客车股份有限公司 国家轨道客车系统集成工程技术研究中心,吉林 长春 130062;2. 西南交通大学 牵引动力国家重点实验室,四川 成都 610031)
Author(s):
 SONG Qingwei1 ZHANG Dafu2 WANG Jianbin2 WU Pingbo2
 ( 1. National Engineering Technology and Research Center for System Integration of Railway
Vehicle, CRRC Changchun Railway Vehicles Co., Ltd., Changchun, Jilin 130062, China;
2.State Key Laboratory of Traction Power, Southwest Jiaotong University, Chengdu, Sichuan 610031, China )
关键词:
 轴箱吊耳振动测试模态结构优化共振疲劳寿命评估地铁车辆仿真
Keywords:
 axlebox lifting lug vibration test modal structure optimization resonance fatigue life assessment metro vehiclesimulation
分类号:
U231;U260.11+1
DOI:
10.13890/j.issn.1000-128x.2019.05.112
文献标志码:
A
摘要:
 某线路地铁车辆轴箱吊耳发生多起断裂事故,因此针对该吊耳进行了振动测试、模态结构优化和共振疲劳计算。测试表明吊耳断裂为线路波磨频率与吊耳一阶固有模态频率发生共振所致,并通过仿真分析进行了吊耳模型验证和结构优化。以实测波磨路段动应力为输入,利用窄带疲劳寿命评估方法和Dirlik 疲劳寿命评估方法对吊耳寿命进行评估,评估结果与实际基本一致,表明利用窄带法进行共振疲劳寿命评估基本可行;对于共振疲劳,当主频绝对单一时,Dirlik 法计算结果与窄带法计算结果一致。
Abstract:
 The axlebox lifting lug of a metro vehicle had broken several times, so that vibration test, modal structure optimization and resonance fatigue assessment were carried out for the lifting lug. The test results showed that the reason of lifting lug breakage was the resonance between the corrugation frequency and the first natural mode frequency of the lifting lug. The lifting lug model was verified and the structure was optimized by simulation analysis. Based on the data which was measured on corrugation line, the lifting lug’s fatigue life was evaluated by the method of narrow-band fatigue life assessment and Dirlik fatigue life assessment method, and the assessment result was consistent with actual situation. It showed that the narrow-band method was basically feasible to evaluate the resonant fatigue life. For resonance fatigue, when the dominant frequency was absolutely single, the results of Dirlik method was agree with narrow band method.

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备注/Memo

备注/Memo:
 作者简介:宋庆伟(1983—),男,高级工程师,主要从事地铁车辆转向架研发工作。
更新日期/Last Update: 2019-09-09