Fatigue Test on Bogie Frame of Straddle-Type Monorail Train Based on IMC

doi:10.3969/j.issn.1674-0696.2013.01.24

Journal of Chongqing Jiaotong University(Natural Science) ›› 2013, Vol. 32 ›› Issue (1): 103-107.DOI: 10.3969/j.issn.1674-0696.2013.01.24

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Fatigue Test on Bogie Frame of Straddle-Type Monorail Train Based on IMC

Wen Xiaoxia,Du Zixue,Jiang Baojun,Li Jihui

School of Mechatronics ＆ Automotive Engineering,Chongqing Jiaotong University,Chongqing 400074,China

Received:2011-09-30 Revised:2012-04-19 Online:2013-02-15 Published:2015-03-12

基于IMC数采器的跨座式单轨列车转向架疲劳试验

文孝霞，杜子学，姜保军，李吉惠

重庆交通大学机电与汽车工程学院，重庆400074

作者简介:文孝霞(1977—)，女，贵州遵义人，副教授，主要从事现代车辆设计方法与理论的研究。E-mail:wenxiaoxia2000@yahoo.com.cn。
基金资助:
国家科技支撑计划项目( 2007BAG06B01)

Abstract

Abstract: Straddle-type monorail train bogie frame was regarded as the test object． The strain gauge was layout at dangerous situation of the frame． By using the half-bridge wiring method and applying portable data collector CI of IMC，the stress time history data of the measuring point placed the dangerous situation was collected at 30， 35， 40， 45 km/h speed． After the collected data was cut，filter，smooth，delayed treatment and discarded invalid amplitude，the program of rain-flow counting and S-N material curve were complied． By the program，the fatigue damaged values under different speed，different filter were calculated． Based on the test data，the function of damaged value and speed were set up，and the fatigue life in different running speed was predicted．

Key words: monorail train bogie, fatigue test, rain-flow counting, fatigue life

摘要： 以跨坐式单轨列车转向架构架为试验对象,在构架危险部位布置应变片。采用半桥路接线法,运用IMC 公司便携式数采器CI,对车辆在30, 35, 40, 45 km/h 运行速度下危险部位测点的应力时间历程数据实时采集。对采集的数据进行截取、滤波、平滑、迟滞处理及载荷谱无效幅值舍弃后,编制雨流计数程序及材料的S-N 材料特性程序,计算出该构架在不同时速、不同滤波情况下疲劳损伤值。根据测试的数据,拟合出损伤值与速度之间的函数关系,预测了转向架构架在不同运行速度下的疲劳寿命。

关键词: 单轨列车转向架, 疲劳试验, 雨流计数法, 疲劳寿命

CLC Number:

U464.32

Wen Xiaoxia,Du Zixue,Jiang Baojun,Li Jihui. Fatigue Test on Bogie Frame of Straddle-Type Monorail Train Based on IMC[J]. Journal of Chongqing Jiaotong University(Natural Science), 2013, 32(1): 103-107.

文孝霞，杜子学，姜保军，李吉惠. 基于IMC数采器的跨座式单轨列车转向架疲劳试验[J]. 重庆交通大学学报（自然科学版）, 2013, 32(1): 103-107.

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Fatigue Test on Bogie Frame of Straddle-Type Monorail Train Based on IMC

基于IMC数采器的跨座式单轨列车转向架疲劳试验

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