20.500.12556/RUL-72598 Statična stabilnost jadrnice diplomsko delo Static stability of a sailboat V diplomski nalogi obravnavam statično stabilnost jadrnice za rotacijo okrog vzdolžne osi. Trup jadrnice pri pojasnjevanju osnovnih pojmov, ki se dotikajo plovnosti in statične stabilnosti, poenostavim do te mere, da lahko parametre opišem z enostavnimi matematičnimi izrazi. V teoretičnem delu vpeljem vse osnovne pojme, ki so pomembni za opis plavajočega telesa. Definiram in pojasnim krivuljo statične stabilnosti plovila, ki predstavlja osrednji del diplomske naloge. Z računalniškim programom Geogebra analitično določim položaje vodne gladine za različne kote nagiba ter vpeljem skupno potencialno energijo sistema. V nadaljevanju statično stabilnost obravnavam z vidika treh spremenljivk – balasta, oblike prečnega prereza trupa in širine trupa. V praktičnem delu s pomočjo treh poenostavljenih modelov trupov analiziram vpliv vseh obravnavanih spremenljivk (balasta, širine in oblike) na statično stabilnost. Za vsakega od primerov izrišem krivuljo stabilnosti. Rezultate povežem s teoretičnimi predpostavkami, predstavljenimi v prvem delu diplome. V tem delu predstavim tudi eksperimentalno metodo, s katero sem določil izravnalni navor brez določanja prijemališča vzgona. In this thesis static stability of a sailboat is presented with focus on rotation about its longitudinal axis. For an explanation of basic concepts which are connected to buoyancy and static stability of the boat, the boat’s hull is simplified to the extent which allows for description of all parameters with simple mathematical expressions. In the theoretical part basic terms which are important for the description of a floating body are intoduced and the curve of static stability of the vessel is explained, which represents the central part of the thesis. A computer program Geogebra is used for analytical determination of the position of the water line for different angles of inclination and the total potential energy of the system is introduced. Further, static stability is discussed in terms of three variables – ballast, cross-sectional shape of the hull and the width of the hull. In the practical part of this thesis the impact of all previously introduced variables (ballast, width and shape) is analyzed with the help of three simplified models of hulls. For each case, the curve of static stability is plotted. Data, obtained at measurements is linked to the theoretical results, presented in the first part of the thesis. Experimental method used for determining the balancing torque without determining the center of buoyancy is also explained in this part. statika plavanje floating true false false [B. Uršič] Slovenski jezik Angleški jezik Diplomsko delo/naloga 2015-09-29 05:10:44 2015-09-29 05:10:44 2025-04-17 04:52:16 0000-00-00 00:00:00 2015 0 0 VI, 43 str. 0000-00-00 NiDoloceno NiDoloceno NiDoloceno 0000-00-00 0000-00-00 0000-00-00 53:629.53(043.2) 10692681 Diploma_Ursic.pdf Diploma_Ursic.pdf 1 72499864CFA48B828A9CA5B7E6BDA346 1a94a17a5b87f6cf86b4f105ecd2755d21a1e26dba71233fb7f49b1efda41e58 5abfd7b1-1aa7-11f0-b232-0050569b8976 https://repozitorij.uni-lj.si/Dokument.php?lang=slv&id=204114 Pedagoška fakulteta 0 0 0