20.500.12556/RUL-182787 Identifikacija 3D obratovalnih deformacijskih oblik polnega polja na podlagi meritev s hitro kamero Full-field 3D operational deflection shape identification based on high-speed-camera measurements Uporaba hitrih kamer in tehnik identifikacije pomikov iz slik omogoča določitev pomikov z visoko prostorsko ločljivostjo. S pretvorbo pomikov v frekvenčno domeno lahko pridobimo nihajne oblike strukture. Za razširitev ravninskih nihajnih oblik v prostorske, je potrebna triangulacija amplitud v frekvenčni domeni. Uporabljene numerične metode pri omenjenem postopku smo zbrali v Python paketu pyidi3D. Na pokrovu turbo kolesa sesalne enote smo z uporabo pripravljenega paketa identificirali nihajne oblike do frekvence 2500 Hz in amplitude na nivoju 0.1 µm. High-speed imaging and image displacement identification techniques allow for high spatial resolution displacement field identification. To extend planar oscillation shapes to three-dimensional representations, frequency-domain triangulation of displacement amplitudes from multiple camera views is required. This method has been implemented in a Python package - pyidi3D. The proposed approach was validated on a impeller cover of a domestic vacuum cleaner suction unit, where operational deflection shapes were successfully identified up to 2500 Hz, with displacement amplitudes on the order of 0.1 µm. strukturna dinamika nihajne oblike triangulacija v frekvenčni domeni numerične metode strojni vid hitra kamera structural dynamics mode shapes frequency domain triangulation numerical methods computer vision high-speed camera true false false [G. Stanovnik] Slovenski jezik Angleški jezik Magistrsko delo/naloga 2026-05-23 08:30:44 2026-05-23 08:30:50 2026-06-01 10:44:48 0000-00-00 00:00:00 2026 0 Ljubljana 0 XX, 55 str. 0000-00-00 NiDoloceno NiDoloceno NiDoloceno 0000-00-00 0000-00-00 0000-00-00 1970-01-01 531.1:534:004.93:519.61(043.2) 285618 279981571 46935.pdf 46935.pdf 1 BE43E35DE506BC8102545184498BFA6F f8d8d4fbc526ba14450089c4f91455e42edfae8f6faba7e1713e97a1489d91fa a4e68149-5670-11f1-b0ab-0050569b8976 https://repozitorij.uni-lj.si/Dokument.php?lang=slv&id=234327 Fakulteta za strojništvo 0 0 0