A Study of some Approaches to Vibration Data Analysis
1993 (English)Report (Other academic)
Using data from extensive vibrational tests of the new aircraft Saab 2000 three different methods for vibration analysis are studied. These methods are ERA (eigensystem realization algorithm), N4SID (a subspace method) and PEM (prediction error approach). We find that both the ERA and N4SID methods give good initial model parameter estimates that can be further improved by the use of PEM. We also find that all methods give good insights into the vibrational modes.
Place, publisher, year, edition, pages
Linköping: Linköping University , 1993. , 6 p.
LiTH-ISY-R, ISSN 1400-3902 ; 1600
System identification, Model analysis, State-space methods, application
Flygplan Konstruktion, Cybernetik Informationsteori
IdentifiersURN: urn:nbn:se:liu:diva-55176ISRN: LiTH-ISY-R-1600OAI: oai:DiVA.org:liu-55176DiVA: diva2:315803