20.500.12556/RUL-629 Analiza konstrukcije stola z ukrivljeno sedežno lupino diplomski projekt Construction analysis of chair with curved seat shell B. Sc. thesis Raziskovali smo napetostno-deformacijsko stanje različnih oblik ukrivljenih lupin, pri različnih obremenitvah ter locirali njihova kritična območja. Uporabili smo ukrivljene lupine iz vezanega lesa različnih oblik, izdelanih v istem kalupu. Z upoštevanjem zahtev evropskih standardov (SIST EN 15373:2007, SIST EN 1728:2002, SIST EN 314-1:2005 in EN 310:1993) smo izvedli preizkus z odvzemom materiala ter preizkus strižne in upogibne trdnosti vezane plošče. Dobljeni rezultati so pokazali, da vse lupine z vidika trajnosti, z visokim varnostnim faktorjem ustrezajo standardom. Z dodatno obdelavo rezultatov smo opravili primerjavo lupin, iz katere je bilo razvidno nihanje kvalitete. Ugotovili smo, da bi se z vidika proizvodnje lahko zmanjšala poraba materiala, z vidika oblikovanja in konstruiranja pa bi se lahko izdelala lupina z drznejšo obliko, ki bi še ustrezala standardom. The stress and deformation state of various shapes of bended shells caused by different forces was researched, and their critical areas located. Curved plywood seat shells of different shapes were made in the same model. According to the requirements of European standard methods the following tests were made: the test of static load, durability test, test with material failure, test with material withdrawal, and the test of shear and bending strength of plywood. The results show that the shells have a high safety factor, and are in the range of European standard requirements. By additional result adjustments it was possible to compare shells, and see differences in quality among them. Taking the results into account we could make the production of the shells more efficient, using less material: from the aspect of constructor and designer the shells could have shape that stands out and still is in the range of standard requirements. lupina stola stoli konstrukcija preizkušanje hrbtni naslon shell construction testing back support true false false [P. Štolfa] Slovenski jezik Angleški jezik Diplomsko delo/naloga 2014-07-11 12:26:25 2014-07-11 12:26:25 2022-07-11 10:36:54 0000-00-00 00:00:00 2011 0 Ljubljana 0 VIII, 50 f. 0000-00-00 NiDoloceno NiDoloceno NiDoloceno 0000-00-00 0000-00-00 0000-00-00 684.43 1977993 du1_stolfa_primoz.pdf du1_stolfa_primoz.pdf 1 D6EC6BCEE3278260A61A3DE276E4EB11 6fc1d17fb011df43a3d8cd560c70b984bf8159a723b4c17fd3ac004e7736f1ee 65f08657-a1b9-11eb-a523-00155dcfd717 20.500.12556/rul/9e8c6250-9d9b-49c5-a6a0-33256a064a2d https://repozitorij.uni-lj.si/Dokument.php?lang=slv&id=132440 Biotehniška fakulteta 0 0 0