Utilization of fiber optic bragg grating sensing systems for health monitoring in railway applications

Hwa Yaw Tam, T. Lee, S. L. Ho, T. Haber, T. Graver, A. Méndez

Research output: Chapter in book / Conference proceedingConference article published in proceeding or bookAcademic researchpeer-review

33 Citations (Scopus)

Abstract

We present results of a fiber optic structural health monitoring (SHM) system on an operational passenger railroad in Hong Kong. The system is based on a network of FBG sensors that measure strain and temperature in a multitude of critical locations. The sensors are mounted on guiding rails as well as on the under-carriage of passenger cars, using specially packaged strain sensors. The system - which is fully operational and in present service use - is providing invaluable and timely information about stresses experienced during service, both static and dynamic, under different operational conditions. The sensors also provide information on the loading and traffic status of the passenger cars; temperature-induced stresses and deformations on rails and carriages; temperatures in and around axles and wheel brakes; dynamic axle vibrations due to corrosion and bearing wear; and other parameters relevant to railroad health monitoring.
Original languageEnglish
Title of host publicationStructural Health Monitoring 2007
Subtitle of host publicationQuantification, Validation, and Implementation - Proceedings of the 6th International Workshop on Structural Health Monitoring, IWSHM 2007
PublisherDEStech Publications
Pages1824-1831
Number of pages8
Volume2
ISBN (Electronic)9781932078718
Publication statusPublished - 1 Jan 2007
Event6th International Workshop on Structural Health Monitoring: Quantification, Validation, and Implementation, IWSHM 2007 - Stanford University, Stanford, United States
Duration: 11 Sep 200713 Sep 2007

Conference

Conference6th International Workshop on Structural Health Monitoring: Quantification, Validation, and Implementation, IWSHM 2007
CountryUnited States
CityStanford
Period11/09/0713/09/07

ASJC Scopus subject areas

  • Computer Science Applications
  • Health Information Management

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