magistrsko delo magistrskega študijskega programa II. stopnje Strojništvo
Klemen Zaletelj (Author), Janko Slavič (Mentor), Miha Boltežar (Co-mentor)

Abstract

Modalno posodabljanje z uporabo pospeškomerov je relativno dobro raziskano, a je merjenje velikega števila prostostnih stopenj lahko zamudno in včasih nemogoče. Hitra kamera omogoča merjenje velikega števila prostostnih stopenj hkrati, zato je tak pristop primeren za uporabo v postopku posodabljanja. Predstavili smo teoretično ozadje uveljavljenih metod za posodabljanje in njihovo delovanje prikazali na numeričnih primerih. Za prikaz postopkov na realnih problemih smo izvedli eksperiment v laboratoriju. Rezultati so pokazali, da je posodabljanje s pomočjo hitre kamere učinkovito in primerljivo s klasičnim pristopom pri posodabljanju manjšega števila parametrov.

Keywords

magistrska dela;modalno posodabljanje;hitra kamera;strukturna dinamika;optični tok;iterativne metode;direktne metode;

Data

Language: Slovenian
Year of publishing:
Typology: 2.09 - Master's Thesis
Organization: UL FS - Faculty of Mechanical Engineering
Publisher: [K. Zaletelj]
UDC: 531.776(043.2)
COBISS: 15693083 Link will open in a new window
Views: 1655
Downloads: 720
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Other data

Secondary language: English
Secondary title: High-speed camera modal updating
Secondary abstract: Modal updating using accelerometers is relatively well researched, however measuring large numbers of degrees of freedom can be time consuming and sometimes impossible. With the use of high-speed cameras, it is possible to measure those large amounts of coordinates simultaniously. This fact makes the approach appropriate for use in modal updating. In the first sections, the theoretical background of well-established methods is presented and their use is demonstrated on numerical examples. Use of updating methods on more realistic examples is shown on experiment carried out in laboratory. The high-speed camera approach was found to be effective and comparable with classical approach, when applied to small number of updating parameters.
Secondary keywords: master thesis;modal updating;high-speed camera;structural dynamics;optical flow;iterative methods;direct methods;
Type (COBISS): Master's thesis/paper
Study programme: 0
Embargo end date (OpenAIRE): 1970-01-01
Thesis comment: Univ. v Ljubljani, Fak. za strojništvo
Pages: XXIV, 93 str.
ID: 10863305
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