Identification of multiple crack locations in micro cantilever beam by wavelet transforms

K Ravikumar; B Ithaya Priya

doi:10.17485/IJST/v13i35.1472

Article

Identification of multiple crack locations in micro cantilever beam by wavelet transforms

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Indian Journal of Science and Technology

DOI: 10.17485/IJST/v13i35.1472

Year: 2020, Volume: 13, Issue: 35, Pages: 3685-3694

Original Article

Identification of multiple crack locations in micro cantilever beam by wavelet transforms

K Ravikumar¹, B Ithaya Priya^2*

¹Engineering Mathematics, Faculty of Engineering and Technology, Annamalai University,Annamalai Nagar, 608002, Tamil Nadu, India
²Department of Mathematics, Annamalai University, Annamalai Nagar, 608002, Tamil Nadu,India

*Corresponding Author
Email: [email protected]

Received Date:29 August 2020, Accepted Date:24 September 2020, Published Date:05 October 2020

This work is licensed under a Creative Commons Attribution 4.0 International License.

Abstract

Background/Objectives: Presence of cracks in micro cantilever beams badly influence the performance of the device. This study is to propose suitable method utilizing wavelet transform to detect the cracks present over the structure of micro cantilever beams. Methods: The proposed device structure was designed and modeled using COMSOL Multi-physics simulation software.The signals obtained are analyzed using wavelet transform. Findings: Micro cantilevers shows difference in its vibrational frequency, stress and deflection over various input conditions. The location of the multiple cracks which appears in micro cantilever structure due to various working conditions were perfectly identified using wavelet transform analysis. Novelty/Applications: We report the accurate locations of the crack present in micro structured devices. This ideal method can be applied on micro cantilever devices which found its applications as Transducers, Sensors, Switches, Actuators and Probes.

Keywords: Wavelet analysis; crack detection; cantilever beam; MEMS;COMSOL

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Copyright

© 2020 Ravikumar & Ithaya Priya.This is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited. Published By Indian Society for Education and Environment (iSee).