Diagnostics Based on Continuous Scanning LDV Methods: Numerical Study

Sietze Bruinsma, Dario Di Maio, Tiedo Tinga

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    This paper presents a research work on diagnostics using continuous scanning laser methods. Structural Health Monitoring based on laser vibrometry can exploit the ability of a scanning laser to measure vibration responses remotely both regarding temporal and spatial resolution. Therefore, it can be a powerful
    approach for rapid damage detection of components presenting an unhealthy dynamic behaviour. The work is focused on numerical analysis of a cantilever beam which is subjected to damage of different severity levels. The severity will be measured regarding response phase shift for a fixed excitation frequency. The simulated nodal responses of the surface being scanned by a laser beam are selected and used for simulating the spectral responses obtained from CSLDV methods. The main objective of this work is to determine the structural integrity based on an indicator obtained by referencing the relative spectral sidebands between a pristine and damage condition.
    Original languageEnglish
    Article number012012
    Number of pages8
    JournalJournal of physics: Conference series
    Publication statusPublished - 24 Dec 2018
    Event13th International Conference on Vibration Measurements by Laser and Noncontact Techniques & Short Course 2018 - the Muse Theatre, Ancona, Italy
    Duration: 19 Jun 201822 Jun 2018
    Conference number: 13


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