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GRAFIČNO NAČRTOVANJE LADIJSKEGA VIJAKA
ID Pirman, Mark (Author), ID Grm, Aleksander (Mentor) More about this mentor... This link opens in a new window

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Abstract
Diplomsko delo obravnava proces načrtovanja in grafičnega modeliranja ladijskega vijaka z uporabo računalniško podprtega sistema SolidWorks, pri čemer je poudarek na razumevanju vpliva ključnih geometrijskih parametrov na hidrodinamično učinkovitost propelerja. Posebej so analizirani parametri, kot so prekrivno razmerje, korak (pitch), število lopatic ter izbor primernega profila, saj ti neposredno določajo obnašanje vijaka v obratovalnem okolju in vplivajo na pojav kavitacije, vibracij ter izkoristek pogonskega sistema. V teoretičnem delu sta primerjani dve uveljavljeni metodi izrisa lopatic, pri čemer analiza izpostavi njune prednosti in omejitve z vidika natančnosti, možnosti optimizacije ter ohranjanja hidrodinamičnih lastnosti. Delo vključuje pregled strokovne literature s področja pomorske propulzije in geometrije ladijskih vijakov, pri čemer posebno vlogo zavzemajo standardizirane serije, kot je Wageningen B-serija, ki predstavljajo pomembno referenčno podlago pri dimenzioniranju in vrednotenju oblike lopatic. Praktični del naloge prikazuje celovit postopek izgradnje tridimenzionalnega modela propelerja, katerega zasnova temelji na teoretično določenih parametrih, izbranih metodah izrisa ter uporabi naprednih funkcij SolidWorksa. Rezultati modeliranja jasno ponazarjajo vpliv posameznih geometrijskih odločitev na končno obliko in delovanje vijaka, pri čemer potrjujejo, da pravilno določeni parametri bistveno prispevajo k večji hidrodinamični učinkovitosti in zmanjšanju neželenih pojavov v obratovanju. Delo tako vzpostavlja neposredno povezavo med teoretičnimi zakonitostmi, izbranimi konstrukcijskimi pristopi in računalniško izvedenim modelom ter ponuja celovit vpogled v ključne dejavnike, ki določajo kakovost, obnašanje in zmogljivost sodobnih ladijskih propelerjev.

Language:Slovenian
Keywords:morska hidrodinamika, CFD, primerjava upora
Work type:Bachelor thesis/paper
Organization:FPP - Faculty of Maritime Studies and Transport
Year:2026
PID:20.500.12556/RUL-184858 This link opens in a new window
COBISS.SI-ID:285369603 This link opens in a new window
Publication date in RUL:16.07.2026
Views:124
Downloads:50
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Secondary language

Language:English
Title:GRAPHIC DESIGN OF A SHIP'S PROPELLER
Abstract:
The thesis deals with the process of designing and graphically modeling a ship's propeller using the computer-aided SolidWorks system, with an emphasis on understanding the influence of key geometric parameters on the hydrodynamic efficiency of the propeller. Parameters such as overlap ratio, pitch, number of blades and selection of a suitable profile are specifically analyzed, as they directly determine the behavior of the propeller in the operating environment and affect the occurrence of cavitation, vibration and efficiency of the propulsion system. The theoretical part compares two established methods of drawing blades, with the analysis highlighting their advantages and limitations in terms of accuracy, optimization possibilities and preservation of hydrodynamic properties. The work includes a review of professional literature in the field of marine propulsion and propeller geometry, with a special role played by standardized series, such as the Wageningen B-series, which represent an important reference basis for dimensioning and evaluating the shape of blades. The practical part of the thesis shows the complete process of building a three-dimensional propeller model, the design of which is based on theoretically determined parameters, selected plotting methods and the use of advanced SolidWorks functions. The modeling results clearly illustrate the influence of individual geometric decisions on the final shape and operation of the propeller, confirming that correctly determined parameters significantly contribute to greater hydrodynamic efficiency and the reduction of undesirable phenomena in operation. The work thus establishes a direct connection between theoretical principles, selected design approaches and the computer-generated model and offers a comprehensive insight into the key factors that determine the quality, behavior and performance of modern ship propellers.

Keywords:marine hydrodynamics, CDF, resistance comparison

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