20.500.12556/RUL-171902 Zasnova črpalke na osnovi feromagnetne membrane v spremenljivem magnetnem polju Design of a pump based on a ferromagnetic membrane in a variable magnetic field Tema diplomske naloge je zasnova črpalke, gnane z magnetnim poljem, ki vpliva na gibanje feromagnetne membrane. Magneti imajo izjemno lastnost, da povzročajo silo, ki deluje na daljavo. To silo smo izkoristili za poganjanje membrane brez neposrednega kontakta z aktuatorjem, ki je v našem primeru translacijsko premikajoč se permanentni magnet. Osnovni koncept črpalke sledi zasnovi človeškega srca, ki vsebuje prekate in zaklopke. V nalogi je narejen pregled dostopne literature s področja membranskih črpalk, membranskih mikročrpalk, predstavitev osnov magnetizma in izdelovalnih tehnologij, uporabljenih pri izdelavi. Črpalko smo najprej zasnovali virtualno, zatem pa še izdelali s pomočjo tehnik hitrega prototipiranja, kot so npr. 3D tisk, laserski razrez, toplotni preoblikovanje itn. Črpalko smo izdelali iz dostopnih gradiv, kot so plastične mase, gume in jeklena pločevina. V vseh fazah snovanja smo pazili na ustrezno tesnjenje, predvsem na stiku ohišja in zaklopk. Določili smo bistvene karakteristike črpalke, kot so dobavna višina, pretok črpalke na delovni cikel in tesnjenje zaklopk. Rezultate smo primerjali s teoretično izračunanimi vrednostmi. Preučili smo, kje pride do razlik, poiskali potencialne razloge in podali ideje za izboljšanje delovanja črpalke. The topic of this thesis is the design of a pump driven by a magnetic field that affects the movement of a ferromagnetic membrane. Magnets have the remarkable property of generating force that acts at a distance. We used this force to drive the membrane without direct contact with the actuator, which si in our case a translationally moving permanent magnet. The basic concept of the pump follows the design of the human heart, which contains chambers and valves. The thesis includes a review of the available literature in the field of membrane pumps, membrane micropumps, an introduction to the basics of magnetism, and an overview of manufacturing technologies used in production. We first designed the pump virtually, and then fabricated it using rapid prototyping techniques such as 3D printing, laser cutting, thermal forming, etc. The pump was made from readily available materials, such as plastics, rubber, and steel sheet metal. In all design stages, we paid close attention to proper sealing, especially at the interface between the housing and the valves. We determined the essential characteristics of the pump, such as delivery head, pump flow rate per working cycle, and valve sealing. The results were compared with theoretically calculated values. We examined where discrepancies occurred, identified potential reasons for them, and suggested ideas for improving the pump’s performance. črpalka magnetno polje 3D tisk zaklopke pump magnetic field 3D printing valve true false false Slovenski jezik Angleški jezik Diplomsko delo/naloga 2025-09-04 08:31:16 2025-09-04 08:31:20 2025-09-25 03:46:25 0000-00-00 00:00:00 2025 0 0 XI, 41 f. 2025 0000-00-00 NiDoloceno NiDoloceno NiDoloceno 0000-00-00 0000-00-00 0000-00-00 621.658:537.622.4:004.92(043.2) 275367 248098051 42914.pdf 42914.pdf 1 7CF1B9E722AAF8DF4A9FF83DA838B58D f227f4acd5f0de2c18b0d0529dc55a00e9259b9d2a47ffd7cfb8a7f817d02d9b 9f3275eb-8958-11f0-9328-0050569b8976 https://repozitorij.uni-lj.si/Dokument.php?lang=slv&id=215468 Fakulteta za strojništvo 0 0 0