A simple approach to real-time fault detection and diagnosis in base-isolated structures

dc.contributor.authorNayyerloo, M.
dc.contributor.authorAcho, J.R.
dc.contributor.authorChase, Geoff
dc.contributor.authorChen, X.Q.
dc.contributor.authorRodellar, J
dc.date.accessioned2012-03-11T20:07:19Z
dc.date.available2012-03-11T20:07:19Z
dc.date.issued2011en
dc.description.abstractIn recent years, base-isolation has become an increasingly applied structural design technique in highly seismic areas. The state-of-the-art practice is to use active or passive magneto-rheological (MR) dampers to limit the base displacement. The crucial effect of likely faults in the base-isolation system on the top superstructure requires that the resulting nonlinear hysteretic system to be monitored in real-time for possible changes in the two most important structural parameters: stiffness and damping. This paper develops a simple fault detection and diagnosis technique based on comparing the internal dynamics of the base-isolation system with those of a healthy baseline model to detect faults. Three different cases of stiffness, damping, and combined stiffness and damping faults are studied, in silico, on a realistic base-isolated structure subjected to the Loma Prieta earthquake with a passive MR damper. The simulation results show that the proposed fault detection and diagnosis algorithm is well capable of detecting the existence, determining the type, and quantifying the severity of faults in the system in real-time as the faults occur.en
dc.identifier.citationNayyerloo, M., Acho,.J.R., Rodellar, J., Chase, J.G., Chen, X.Q. (2011) A simple approach to real-time fault detection and diagnosis in base-isolated structures. Auckland, New Zealand: 9th Pacific Conference on Earthquake Engineering (PCEE 2011), 14-16 Apr 2011. PCEE 2011: Building an Earthquake-Resilient Society, Paper 137.en
dc.identifier.urihttp://hdl.handle.net/10092/6391
dc.language.isoen
dc.publisherUniversity of Canterbury. Mechanical Engineeringen
dc.relation.urihttp://db.nzsee.org.nz/2011/Handbook.pdfen
dc.rights.urihttps://hdl.handle.net/10092/17651en
dc.subject.anzsrcFields of Research::40 - Engineering::4005 - Civil engineering::400506 - Earthquake engineeringen
dc.subject.anzsrcFields of Research::40 - Engineering::4005 - Civil engineering::400510 - Structural engineeringen
dc.titleA simple approach to real-time fault detection and diagnosis in base-isolated structuresen
dc.typeConference Contributions - Published
Files
Original bundle
Now showing 1 - 2 of 2
Loading...
Thumbnail Image
Name:
12631856_MNayyerloo_PCEE2011_poster_ver05.pdf
Size:
444.02 KB
Format:
Adobe Portable Document Format
Loading...
Thumbnail Image
Name:
12631856_PCEE2011_full_length_paper_ver05.pdf
Size:
219.59 KB
Format:
Adobe Portable Document Format