zaključna naloga Univerzitetnega študijskega programa I. stopnje Strojništvo - Razvojno raziskovalni program
Luka Frančič (Author), Janko Slavič (Mentor)

Abstract

Stalen razvoj tehnologij 3D tiska omogoča fleksibilen razvoj in izdelavo pametnih struktur v enem procesu. Delo obsega potek zasnove in izdelave 3D natisnjene naprave za dinamično balansiranje togih rotorjev. Zasnova se je začela z numeričnim parametričnim modelom. Z uporabo parametričnega modela je bila narejena analiza vpliva posameznih parametrov na lastne frekvence celotnega sestava. Naprava je bila sestavljena iz večih 3D tiskanih kosov. Zaznavala za merjenje dinamičnih sil v ležajih so bila natisnjena iz prevodnega filamenta, ki izkazuje piezournostne lastnosti. Po izdelavi naprave je sledila meritev lastnih frekvenc in s tem določitev uporabnega območja delovanja. Sledilo je umerjanje 3D natisnjenih zaznaval. Po izvedbi umerjanja naprave je sledil poskus identifikacije znanega debalansa na rotorju. Po uspešni identifikaciji debalansa je bil izveden poskus dinamičnega balansiranja rotorja z dodajanjem mase, pri čemer je bil rotor predhodno statično zbalansiran. Izdelana naprava na tej točki ne omogoča natančnega dinamičnega balansiranja.

Keywords

diplomske naloge;balansiranje togih rotorjev;dinamično masno uravnoteženje;3D tiskanje;piezoupornost;dinamična zaznavala;

Data

Language: Slovenian
Year of publishing:
Typology: 2.11 - Undergraduate Thesis
Organization: UL FS - Faculty of Mechanical Engineering
Publisher: [L. Frančič]
UDC: 004.925.84:621.79(043.2)
COBISS: 121620483 Link will open in a new window
Views: 16
Downloads: 5
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Other data

Secondary language: English
Secondary title: 3D printed device for balancing rotors
Secondary abstract: Continuous development of 3D printing technologies enables flexible development and production of smart structures in one process. The work includes the process of designing and manufacturing a 3D printed device capable of balancing stiff rotors via dynamic balancing. The design started with a numerical parametric model. Using a parametric model, the influence of individual parameters on the natural frequencies of the entire composition was identified. The device was made up of several 3D printed pieces. Sensors for measuring dynamic forces in bearings were 3D printed from a conductive filament that exhibits piezoresistive properties. After the device was manufactured, the measurement of its own frequencies followed, thereby determining the useful range of operation. Afterwards, sensitivities of piezoresistive sensors were measured. After the device calibration, an attempt was made to identify the known imbalance on the rotor. After the successful identification of the imbalance, an attempt was made to dynamically balance the rotor by adding mass, whereby the rotor was previously statically balanced. The manufactured device does not allow precise dynamic balancing at this point.
Secondary keywords: thesis;mass balancing of rigid rotors;dynamic mass balancing;3D printing;piezoresistance;dynamic sensors;
Type (COBISS): Final paper
Study programme: 0
Embargo end date (OpenAIRE): 1970-01-01
Thesis comment: Univ. v Ljubljani, Fak. za strojništvo
Pages: XIII, 34 f.
ID: 16327035
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