Structural health monitoring system using FBG sensor for simultaneous detection of acceleration and strain

Hiroshi Hayano, Akira Mita

Research output: Chapter in Book/Report/Conference proceedingConference contribution

1 Citation (Scopus)

Abstract

Structural health monitoring systems are being recognized as effective tools to minimize maintenance costs for civil infrastructures. Recently, many damage evaluation methods for the systems have been proposed. For example, natural frequencies were used for global monitoring, and strain measurement for local monitoring. In this study, a novel monitoring system that measures two physical values simultaneously, acceleration and strain, by a single sensor is proposed. At first, a hybrid FBG sensor for monitoring strain and acceleration is proposed. The sensor consists of an FBG element and a mass to form a vibration system. Then, a monitoring system using the hybrid FBG sensor and support vector machines is proposed. Many damage scenarios for a moment-resistant frame were tested. The results show that the sensitivities of strain and natural frequency are significantly different. It is confirmed that combined use of acceleration and strain measurement enhances the performance of the system.

Original languageEnglish
Title of host publicationProceedings of SPIE - The International Society for Optical Engineering
EditorsM. Tomizuka
Pages624-633
Number of pages10
Volume5765
EditionPART 2
DOIs
Publication statusPublished - 2005
EventSmart Structures and Materials 2005 - Sensors and Smart Structures Technologies for Civil, Mechanical, and Aerospace Systems - San Diego, CA, United States
Duration: 2005 Mar 72005 Mar 10

Other

OtherSmart Structures and Materials 2005 - Sensors and Smart Structures Technologies for Civil, Mechanical, and Aerospace Systems
CountryUnited States
CitySan Diego, CA
Period05/3/705/3/10

Fingerprint

structural health monitoring
Structural health monitoring
Hybrid sensors
Monitoring
strain measurement
sensors
Sensors
Strain measurement
resonant frequencies
acceleration measurement
damage
Natural frequencies
Acceleration measurement
maintenance
Support vector machines
costs
moments
vibration
evaluation
sensitivity

Keywords

  • Acceleration measurement
  • Bridge
  • FBG
  • Natural frequency
  • Strain measurement
  • Support vector machine

ASJC Scopus subject areas

  • Electrical and Electronic Engineering
  • Condensed Matter Physics

Cite this

Hayano, H., & Mita, A. (2005). Structural health monitoring system using FBG sensor for simultaneous detection of acceleration and strain. In M. Tomizuka (Ed.), Proceedings of SPIE - The International Society for Optical Engineering (PART 2 ed., Vol. 5765, pp. 624-633). [65] https://doi.org/10.1117/12.598639

Structural health monitoring system using FBG sensor for simultaneous detection of acceleration and strain. / Hayano, Hiroshi; Mita, Akira.

Proceedings of SPIE - The International Society for Optical Engineering. ed. / M. Tomizuka. Vol. 5765 PART 2. ed. 2005. p. 624-633 65.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Hayano, H & Mita, A 2005, Structural health monitoring system using FBG sensor for simultaneous detection of acceleration and strain. in M Tomizuka (ed.), Proceedings of SPIE - The International Society for Optical Engineering. PART 2 edn, vol. 5765, 65, pp. 624-633, Smart Structures and Materials 2005 - Sensors and Smart Structures Technologies for Civil, Mechanical, and Aerospace Systems, San Diego, CA, United States, 05/3/7. https://doi.org/10.1117/12.598639
Hayano H, Mita A. Structural health monitoring system using FBG sensor for simultaneous detection of acceleration and strain. In Tomizuka M, editor, Proceedings of SPIE - The International Society for Optical Engineering. PART 2 ed. Vol. 5765. 2005. p. 624-633. 65 https://doi.org/10.1117/12.598639
Hayano, Hiroshi ; Mita, Akira. / Structural health monitoring system using FBG sensor for simultaneous detection of acceleration and strain. Proceedings of SPIE - The International Society for Optical Engineering. editor / M. Tomizuka. Vol. 5765 PART 2. ed. 2005. pp. 624-633
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