IDEAS home Printed from https://ideas.repec.org/a/taf/rajsxx/v9y2017i3p339-348.html
   My bibliography  Save this article

Comparison of infrared thermography and miniature Deltatron accelerometer sensors in the measurement of structural vibration characteristics

Author

Listed:
  • Stephen M. Talai
  • Dawood A. Desai
  • P. Stephan Heyns

Abstract

This paper investigates the comparison of infrared thermography (IRT) and miniature Deltatron accelerometer sensors in measuring structural vibration characteristics in terms of frequency and displacement, given that of age IRT has fully grown for temperature condition monitoring. In addition, IRT has been extensively applied in non-destructive techniques for evaluation of surface cracks through the observation of thermal imaging of vibration-induced crack frictional heat generation. Therefore, in order to conduct this study, both single and dual cantilever beam-like structures (AISI 304 steel) coupled with a slipping frictional rod (lacing wire) were subjected to forced excitations with an infrared camera capturing the thermal profile emanating from beam-lacing wire frictional interface. Concurrently, miniature Deltatron accelerometer sensors were attached to the beam surface next to the frictional interface focused by IR camera. The thermally analyst vibration characteristics parameters were compared against those acquired by accelerometers. The comparison of results exhibited a maximum relative difference of 0.28% and 14.88% for frequencies and displacements, respectively. This shows that IRT is more reliable in measuring structural vibration frequency than displacements. The finding is particularly useful in overcoming many limitations inherent in some of the current vibration measuring techniques such strain gauges failure due to fatigue.

Suggested Citation

  • Stephen M. Talai & Dawood A. Desai & P. Stephan Heyns, 2017. "Comparison of infrared thermography and miniature Deltatron accelerometer sensors in the measurement of structural vibration characteristics," African Journal of Science, Technology, Innovation and Development, Taylor & Francis Journals, vol. 9(3), pages 339-348, May.
    • Handle: RePEc:taf:rajsxx:v:9:y:2017:i:3:p:339-348
    DOI: 10.1080/20421338.2017.1327930
    as

    Download full text from publisher

    File URL: http://hdl.handle.net/10.1080/20421338.2017.1327930
    Download Restriction: Access to full text is restricted to subscribers.
    File URL: https://libkey.io/10.1080/20421338.2017.1327930?utm_source=ideas
    LibKey link: if access is restricted and if your library uses this service, LibKey will redirect you to where you can use your library subscription to access this item
    ---><---

    As the access to this document is restricted, you may want to search for a different version of it.

    More about this item

    Statistics

    Access and download statistics

    Corrections

    All material on this site has been provided by the respective publishers and authors. You can help correct errors and omissions. When requesting a correction, please mention this item's handle: RePEc:taf:rajsxx:v:9:y:2017:i:3:p:339-348. See general information about how to correct material in RePEc.

    If you have authored this item and are not yet registered with RePEc, we encourage you to do it here. This allows to link your profile to this item. It also allows you to accept potential citations to this item that we are uncertain about.

    We have no bibliographic references for this item. You can help adding them by using this form .

    If you know of missing items citing this one, you can help us creating those links by adding the relevant references in the same way as above, for each refering item. If you are a registered author of this item, you may also want to check the "citations" tab in your RePEc Author Service profile, as there may be some citations waiting for confirmation.

    For technical questions regarding this item, or to correct its authors, title, abstract, bibliographic or download information, contact: Chris Longhurst (email available below). General contact details of provider: http://www.tandfonline.com/rajs .

    Please note that corrections may take a couple of weeks to filter through the various RePEc services.

    IDEAS is a RePEc service. RePEc uses bibliographic data supplied by the respective publishers.