Experimental study on damage detection of railway turnouts based on characteristics of FBG reflective spectra

Xiao Wei Ye, Yang Jiang, Yiqing Ni, Juan Su, Xiao Peng Dong, Jie Ling Xiao

Research output: Journal article publicationJournal articleAcademic researchpeer-review

4 Citations (Scopus)


The structural performance and safety condition of the railway turnout has a significant impact on the running safety and operation quality of the trains, especially the high-speed trains, and it is therefore of great importance to conduct the research of damage detection and crack monitoring for the railway turnout. A fiber Bragg grating (FBG) sensing technology-based method for damage detection of turnout rail-tracks was proposed with the aid of the characteristics of reflection spectra of FBG sensors. The FBG sensors were installed on the turnout rail-track with cracks, and the static and dynamic experiments in the laboratory were carried out to verify the method of damage detection by analyzing the structure of reflection spectra of FBG sensors. The experimental results show that the proposed damage identification method based on the characteristics of FBG reflective spectra can effectively identify the cracks on the turnout rail-tracks.
Original languageEnglish
Pages (from-to)71-76
Number of pages6
JournalZhendong yu Chongji/Journal of Vibration and Shock
Issue number6
Publication statusPublished - 28 Mar 2014


  • Crack monitoring
  • Damage detection
  • Fiber Bragg grating
  • Railway turnout
  • Reflective spectrum

ASJC Scopus subject areas

  • Mechanical Engineering
  • Mechanics of Materials
  • Acoustics and Ultrasonics

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