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Trdnostna analiza mehanizma inštalacijskega odklopnika
ID Petek, Marko (Author), ID Kunc, Robert (Mentor) More about this mentor... This link opens in a new window

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Abstract
Z namenom ugotovitve trdnostne analize oziroma časovnega poteka deformacijsko napetostnega stanja mehanizma instalacijskega odklopnika je v magistrskem delu predstavljena izdelava poenostavljenega geometrijskega-numeričnega modela mehanizma inštalacijskega odklopnika. Geometrijsko-numerični model mehanizma instalacijskega odklopnika je izdelan na osnovi metode končnih elementov iz geometrijskega modela enopolnega instalacijskega odklopnika tipa C z nazivnim tokom 25 A. Geometrijsko–numerični model omogoča simulacijo realnega časovnega poteka sestavnih delov mehanizma. S pomočjo modela se lahko oceni časovni potek deformacijsko-napetostnega stanja mehanizma in trenje med posameznimi deli. Določi se kritične dele mehanizma glede zagotavljanja funkcije delovanja in zdržljivosti ter možnosti optimiranja geometrije in materialov sestavnih delov mehanizma. S pomočjo posnetkov visokohitrostne kamere realnega časovnega poteka gibanja posameznih delov mehanizma instalacijskega odklopnika je bila izvedena tudi validacija delovanja geometrijsko-numeričnega modela mehanizma inštalacijskega odklopnika. Rezultati numerične simulacije časovnega poteka deformacijsko napetostnega stanja mehanizma instalacijskega odklopnika kažejo, da je izklopni mehanizem inštalacijskega odklopnika zasnovan tako, da omogoča dovolj hitro delovanje ne da bi prišlo do porušitve katerega izmed delov mehanizma.

Language:Slovenian
Keywords:inštalacijski odklopniki, mehanizmi, kinematična analiza, deformacijsko napetostna analiza, metoda končnih elementov
Work type:Master's thesis/paper
Typology:2.09 - Master's Thesis
Organization:FS - Faculty of Mechanical Engineering
Place of publishing:Ljubljana
Publisher:[M. Petek]
Year:2019
Number of pages:XXI, 64 str.
PID:20.500.12556/RUL-113014 This link opens in a new window
UDC:621.316:539.4:519.61(043.2)
COBISS.SI-ID:16968475 This link opens in a new window
Publication date in RUL:29.11.2019
Views:2038
Downloads:282
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Secondary language

Language:English
Title:Strength analysis of mechanism of circuit breaker
Abstract:
In order to determine the strength analysis or the time course of the deformation-stress state of the installation circuit breaker, the master's thesis presents the production of a simplified geometric-numerical model of the installation circuit breaker mechanism. The geometric-numerical model of the mechanism of the circuit breaker is made on the basis of the finite element method from the geometric model of a single-pole circuit-breaker of type C with a nominal current of 25 A. The geometric-numerical model enables simulation of the real time course of the components of the mechanism. Using the model, the time course of the deformation-stress state of the mechanism and the friction between the individual parts can be estimated. Critical parts of the mechanism will be determined in order to ensure its function and durability and the possibility of optimizing the geometry and materials of the components of the mechanism. With the help of high-speed camera recordings of real time course of motion of individual parts of the mechanism of the circuit breaker, the validation of the geometric-numerical model of the mechanism of the circuit breaker mechanism was also validated. The results of the numerical simulation of the time course of the deformation-stress state of the circuit breaker mechanism show that the shut-off mechanism of the circuit breaker is designed in such a way as to enable fast enough operation without breaking any of the parts of the mechanism.

Keywords:circuit breakers, mechanisms, kinematic analysis, deformation and stress analysis, finite element method

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