An Application Example of Regularization: Time-varying Operational Modal Analysis

Research output: Chapter in Book/Report/Conference proceedingConference paper

Abstract

This paper presents an efficient nonparametric
time-varying time domain system identification method for the
Operational Modal Analysis (OMA) framework. OMA tackles industrial measurements of vibrating structures in real-life operating conditions without the exact knowledge of the excitation signal. In this work a method is provided to estimate the time-varying output autocorrelation function of vibrating structures and applied to a measurement of wind tunnel testing of an airplane. Using the proposed methodology, the estimated time-varying two-dimensional output autocorrelation model provides a good data-fit with respect to tracking of varying resonances.
Original languageEnglish
Title of host publicationPROCEEDINGS OF THE 25TH MINISYMPOSIUM OF THE DEPARTMENT OF MEASUREMENT AND INFORMATION SYSTEMS BUDAPEST UNIVERSITY OF TECHNOLOGY AND ECONOMICS
Pages16-19
Number of pages4
Publication statusPublished - 29 Jan 2018
Event25th Minisymposium of the Department of Measurement and Information Systems - Room IB019 of BME Building I, BME, Budapest, Hungary
Duration: 29 Jan 2018 → …
https://www.mit.bme.hu/eng/node/9857

Conference

Conference25th Minisymposium of the Department of Measurement and Information Systems
CountryHungary
CityBudapest
Period29/01/18 → …
Internet address

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