This paper presents a statistical measure for the identification of the presence, the location, and the calibration of the strength of singularity in a signal or in any of its derivatives in the presence of measurement noise without the requirement of a baseline using a wavelet based detection technique. For this proposed wavelet based detection of singularities present in a signal, the problem of false alarm and its significant reduction by use of multiple measurements is presented. The importance of the proposed measure on baseline and nonbaseline damage calibration has been discussed from the aspect of structural health monitoring. The findings in this paper can also be used for cross-checking of background noise level in an observed signal. The detection of the existence, location, and extent of an open crack from the first fundamental modeshape of a simply supported beam is presented as an example problem.
Skip Nav Destination
e-mail: basub@tcd.ie
e-mail: alan.oconnor@tcd.ie
Article navigation
August 2009
Research Papers
A Statistical Measure for Wavelet Based Singularity Detection
Biswajit Basu,
Biswajit Basu
Associate Professor
Department of Civil, Structural, and Environmental Engineering,
e-mail: basub@tcd.ie
Trinity College Dublin
, Dublin 2, Ireland
Search for other works by this author on:
Alan O’ Connor
Alan O’ Connor
Senior Lecturer
Department of Civil, Structural, and Environmental Engineering,
e-mail: alan.oconnor@tcd.ie
Trinity College Dublin
, Dublin 2, Ireland
Search for other works by this author on:
Vikram Pakrashi
Biswajit Basu
Associate Professor
Department of Civil, Structural, and Environmental Engineering,
Trinity College Dublin
, Dublin 2, Irelande-mail: basub@tcd.ie
Alan O’ Connor
Senior Lecturer
Department of Civil, Structural, and Environmental Engineering,
Trinity College Dublin
, Dublin 2, Irelande-mail: alan.oconnor@tcd.ie
J. Vib. Acoust. Aug 2009, 131(4): 041015 (6 pages)
Published Online: July 14, 2009
Article history
Received:
November 2, 2007
Revised:
November 7, 2008
Published:
July 14, 2009
Citation
Pakrashi, V., Basu, B., and O’ Connor, A. (July 14, 2009). "A Statistical Measure for Wavelet Based Singularity Detection." ASME. J. Vib. Acoust. August 2009; 131(4): 041015. https://doi.org/10.1115/1.3142880
Download citation file:
Get Email Alerts
Bone Conduction: A Linear Viscoelastic Mixed Lumped-Continuum Model for the Human Skin in the Acoustic Frequency Range
J. Vib. Acoust (December 2023)
A Multiple-Burner Approach to Passive Control of Multiple Longitudinal Acoustic Instabilities in Combustors
J. Vib. Acoust (December 2023)
Widening the Band Gaps of Hourglass Lattice Truss Core Sandwich Structures for Broadband Vibration Suppression
J. Vib. Acoust (December 2023)
Related Articles
Optical Nondestructive Condition Monitoring of Thermal Barrier Coatings
J. Eng. Gas Turbines Power (November,2008)
Data-Driven Calibration of Multifidelity Multiscale Fracture Models Via Latent Map Gaussian Process
J. Mech. Des (January,2023)
Characterization and Detection of Crack-induced Rotary Instability
J. Vib. Acoust (January,2002)
Related Chapters
Constrained Spectrum Denoising Based on Sparse Representation
International Conference on Computer and Computer Intelligence (ICCCI 2011)
Promoted Generation of Damage and Premature Fracture Due to Hydrogen-Enhanced Creation of Strain-Induced Vacancies
International Hydrogen Conference (IHC 2016): Materials Performance in Hydrogen Environments
Analysis the Effect of IMU Calibration Errors on SINS/GPS Integration Accuracy for Airborne Earth Observation
International Symposium on Information Engineering and Electronic Commerce, 3rd (IEEC 2011)