TY - GEN
T1 - Real time structural damage detection in the presence of deterministic operational power line noise
AU - Bhowmik, Basuraj
AU - Hazra, Budhaditya
PY - 2019/5/15
Y1 - 2019/5/15
N2 - The application of real time structural damage detection schemes towards continuous monitoring of system health is an emerging topic of interest. This paper presents the use of real time algorithms belonging to the family of first order eigen perturbation (FOEP) techniques to detect damage, online. Integration of such algorithms towards numerical simulations and experimental validations shows promise in the field of structural health monitoring (SHM). However, the presence of operational noise arising during faults in experimentation, behaviour induced habits and AC voltage sources impedes the possibility of identifying the actual damage patterns. Towards this, the paper uses real time FOEP algorithms that essentially segregates the noise and the harmonic components from the mixed signal, thereby eliciting the vibrating components of the pure signal. Applications to both numerical simulations backed by experimental case studies demonstrate the utility of FOEP family of algorithms as ideal candidates for baseline free SHM.
AB - The application of real time structural damage detection schemes towards continuous monitoring of system health is an emerging topic of interest. This paper presents the use of real time algorithms belonging to the family of first order eigen perturbation (FOEP) techniques to detect damage, online. Integration of such algorithms towards numerical simulations and experimental validations shows promise in the field of structural health monitoring (SHM). However, the presence of operational noise arising during faults in experimentation, behaviour induced habits and AC voltage sources impedes the possibility of identifying the actual damage patterns. Towards this, the paper uses real time FOEP algorithms that essentially segregates the noise and the harmonic components from the mixed signal, thereby eliciting the vibrating components of the pure signal. Applications to both numerical simulations backed by experimental case studies demonstrate the utility of FOEP family of algorithms as ideal candidates for baseline free SHM.
KW - noise separation
KW - online damage detection
KW - operational noise
KW - real time
KW - time series analysis
UR - http://www.scopus.com/inward/record.url?scp=85069495903&partnerID=8YFLogxK
UR - https://www.iomac.info/iomac2019
M3 - Conference contribution book
AN - SCOPUS:85069495903
T3 - 8th IOMAC - International Operational Modal Analysis Conference, Proceedings
SP - 213
EP - 221
BT - 8th IOMAC - International Operational Modal Analysis Conference, Proceedings
A2 - Amador, Sandro D. R.
A2 - Brincker, Rune
A2 - Katsanos, Evangelos I.
A2 - Lopez Aenlle, Manuel
A2 - Fernandez, Pelayo
T2 - 8th International Operational Modal Analysis Conference, IOMAC 2019
Y2 - 13 May 2019 through 15 May 2019
ER -