20.500.12556/RUL-187158 Diagnostika mehanskih sistemov z identifikacijo dinamskih lastnosti pri rotacijskem vzbujanju Diagnostics of mechanical systems through identification of dynamic properties under rotational excitation V zaključni nalogi je obravnavana možnost zaznavanja sprememb dinamskih lastnosti konstrukcij pri moduliranem rotacijskem vzbujanju z uporabo cenovno dostopne merilne opreme. Konzolno vpet namenski pločevinasti preizkušanec je bil vzbujan s servo motorjem z ekscentrično maso, odziv pa merjen z MEMS-pospeškomerom in mikrokrmilnikom ESP32. Iz meritev je bila določena frekvenčna prenosna funkcija, nato pa opravljena primerjava odziva nepoškodovanega in poškodovanega preizkušanca. Po vnosu poškodbe so se spremenile amplitude in frekvence resonančnih vrhov. Rezultati kažejo, da je obravnavani pristop primeren za spremljanje stanja mehanskih sistemov in zgodnje zaznavanje sprememb njihovih dinamskih lastnosti. This final thesis examines the possibility of detecting changes in the dynamic properties of structures under modulated rotational excitation using affordable measurement equipment. A cantilevered, purpose-built sheet metal test specimen was excited by a servomotor with an eccentric mass, and the response was measured using a MEMS accelerometer and an ESP32 microcontroller. The frequency response function was determined from the measurements, followed by a comparison of the responses of the undamaged and damaged test specimen. Following the caused damage, the amplitudes and frequencies of the resonance peaks changed. The results show that the approach under consideration is suitable for monitoring the condition of mechanical systems and for the early detection of changes in their dynamic properties. modulirano rotacijsko vzbujanje frekvenčna prenosna funkcija identifikacija dinamskih lastnosti mikrokrmilnik strukturna dinamika modulated rotational excitation frequency response function identification of dynamic properties microcontroller structural dynamics true false false [A. Pflaum] Slovenski jezik Angleški jezik Diplomsko delo/naloga 2026-09-09 09:21:02 2026-09-09 09:21:03 2026-09-10 10:31:11 0000-00-00 00:00:00 2026 0 Ljubljana 0 0000-00-00 NiDoloceno NiDoloceno NiDoloceno 0000-00-00 0000-00-00 0000-00-00 531.395:531.76:621.3(043.2) 289703 290624771 48734.pdf 48734.pdf 1 22C229AB41B0A29657442FFA1515E3DD 5b699f412589161b18675a3e40e6501f83c8592636907591a3900f7297369902 fec608a2-ac1e-11f1-8bc5-0050569b8976 https://repozitorij.uni-lj.si/Dokument.php?lang=slv&id=246611 Fakulteta za strojništvo 0 0 0