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Automatic online fatigue crack detection in railway axles

Juan Carlos García-PradaMaría J.GómezCristina Castejón

Maqlab research group,Mechanical Engineering Department,University Carlos Ⅲ of Madrid

摘要:Ultrasound testing technology is considered nowadays to be the most reliable solution for testing of railway axles in service and it is included in the standards.However,the Ultrasonic systems used are not equal in specification and performance,depending on the region.Several improvable issues,regarding ultrasound testing and inspection intervals definition,were identified in FP7-Euraxles project.The present study tries to prove that vibration signals contain information that can be used for fatigue cracks detection online in railway axles.Several tests were performed during fatigue tests of railway axles.Some measurements were taken in railway axles that resulted broken,showing that signals experiment large changes of energy at certain parameters when the crack appears and grows.Those changes did not appear in the cases where the axles did not break.
会议名称:

2016 IEEE International Wheelset Congress(IEEE IWC 2016)

会议时间:

2016-11-07

会议地点:

中国四川成都

  • 专辑:

    工程科技Ⅱ辑

  • 专题:

    铁路运输

  • 分类号:

    U279.32

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