[1]赵敏,王维峰,李孝勇,等.基于实测载荷的动车组吊挂螺栓服役寿命评估[J].高速铁路技术,2024,15(04):30-35.[doi:10.12098/j.issn.1674-8247.2024.04.006]
 ZHAO Min,WANG Weifeng,LI Xiaoyong,et al.Assessment of Service Life for Hanger Bolts in Multiple Units Based on Measured Load Data[J].HIGH SPEED RAILWAY TECHNOLOGY,2024,15(04):30-35.[doi:10.12098/j.issn.1674-8247.2024.04.006]
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基于实测载荷的动车组吊挂螺栓服役寿命评估()
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《高速铁路技术》[ISSN:1674-8247/CN:51-1730/U]

卷:
15卷
期数:
2024年04期
页码:
30-35
栏目:
理论探索
出版日期:
2024-08-30

文章信息/Info

Title:
Assessment of Service Life for Hanger Bolts in Multiple Units Based on Measured Load Data
文章编号:
1674-8247(2024)04-0030-06
作者:
赵敏1王维峰1李孝勇1谢劲松2
1.中车青岛四方机车车辆股份有限公司,青岛266111;2.中南大学,长沙410083
Author(s):
ZHAO Min1WANG Weifeng1LI Xiaoyong1XIE Jinsong2
1.CRRC Qingdao Sifang Co. ,Ltd. ,Qingdao? 266111 ,China;2.Central South University ,Changsha? 410083 ,China
关键词:
服役寿命联合仿真模型线性累积损伤吊挂螺栓
Keywords:
service lifecoupled simulation modellinear cumulative damagehanger bolts
分类号:
U269
DOI:
10.12098/j.issn.1674-8247.2024.04.006
文献标志码:
A
摘要:
针对动车组修程修制优化需求,本文提出了一种基于实测载荷和疲劳仿真的动车组吊挂设备螺栓服役寿命评估方法。以客室空调为典型设备开展了实车长期跟踪试验,利用雨流统计法获取不同里程下振动载荷谱,计算运营时间内不同加速度等级下的日均频次;构建Ansys-nCode循环寿命联合仿真模型,获取不同加速度等级下的疲劳寿命;针对不同加速度等级下的日均频次与疲劳寿命,基于Miner线性累积损伤理论,实现了螺栓的服役寿命评估。本文提出的模型和方法为吊挂设备螺栓的修程修制优化提供了指导意见。
Abstract:
In response to the demand for optimizing maintenance regimes for multiple units,this paper proposed a method for evaluating the service life of hanger bolts in multiple units based on measured loads and fatigue simulations. A long-term,in-service tracking test was conducted on an air conditioning unit,as representative of typical cabin device,employing rainflow counting techniques to derive load spectra under varying mileage,subsequently calculating daily frequency counts for each acceleration level experienced during operation. An Ansys-nCode coupled cyclic life simulation model was established to determine fatigue life for the different acceleration levels. Leveraging the Miner linear cumulative damage theory,the service life of the bolts was assessed considering the daily frequency counts and corresponding fatigue lives at each acceleration level. The proposed model and approach provide guidance for the optimization of maintenance regimes for hanger bolts in multiple units.

参考文献/References:

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备注/Memo

备注/Memo:
收稿日期:2022-10-14
作者简介:赵敏(1983-),女,高级工程师。
更新日期/Last Update: 2024-08-30