magistrsko delo magistrskega študijskega programa II. stopnje Strojništvo
Abstract
Razširitev uporabe aditivnih tehnologij, kot je nalaganje filamenta s spajanjem, omogoča
izdelavo elementov zahtevnih oblik, hkrati pa je lahko v primeru uporabe polimernih
materialov bolj ekonomično kot konvencionalne tehnologije. Slabost uporabe termoplastov
je ta, da imajo bistveno slabše mehanske lastnosti kot ostali pogosto uporabljeni materiali,
na primer aluminij in jeklo. V želji po izboljšanju mehanskih lastnosti se tem polimerom
lahko doda polnila v obliki kratkih vlaken, hkrati pa je mogoče izdelek ojačati z dodajanjem
daljših, zveznih vlaken med postopkom nalaganja filamenta. Namen naloge je bila
optimizacija ohišja aksialne batne črpalke za nafto izdelane s tehnologijo 3D tiska z
dodajanjem dolgih ojačitvenih karbonskih vlaken. Optimizacija je bila izvedena s pomočjo
trdnostnih analiz, kjer so se spreminjali material in geometrija ohišja, ter postavitev
karbonskih ojačitev, ki so bile modelirane s pomočjo membranskih elementov z armiranimi
sloji. S primerno postavitvijo karbonskih vlaken, ter prilagojeno geometrijo ohišja iz poli
eter eter ketona s 30 % vsebnostjo kratkih steklenih vlaken, je bila v statičnih simulacijah
dosežena dovolj nizka primerjalna napetost, da na nobenem delu ohišja ni prišlo do
trenutnega loma materiala.
Keywords
magistrske naloge;optimizacija;karbonska vlakna;PEEK;črpalke;metoda končnih elementov;3D tisk;
Data
Language: |
Slovenian |
Year of publishing: |
2024 |
Typology: |
2.09 - Master's Thesis |
Organization: |
UL FS - Faculty of Mechanical Engineering |
Publisher: |
[T. Perme] |
UDC: |
621.9.04:620.173.2:004.92(043.2) |
COBISS: |
191952387
|
Views: |
33 |
Downloads: |
16 |
Average score: |
0 (0 votes) |
Metadata: |
|
Other data
Secondary language: |
English |
Secondary title: |
Optimisation of axial piston pump housing from PEEK material by adding long carbon reinforcing fibres |
Secondary abstract: |
Widespread use of additive technologies, especially fused deposition modelling allows for
the manufacture of complex thermoplastic parts, which are cheaper to produce than their
metal equivalents. The downside of using thermoplastic materials is that they exhibit worse
mechanical properties in comparison with other commonly used materials, such as
aluminium or steel. With the goal of improving mechanical properties fillings in the form of
short fibres are added, as well as long continuous fibres that can be deposited during printing.
This master’s thesis presents the process of the optimization of an axial piston pump housing
produced with the use of 3D printing technology by reinforcing it with long carbon fibres.
The optimization process was done with the use of stress analyses, during which geometry,
material and the long fibre reinforcements positions in the housing were changed. With
proper positioning of carbon fibre reinforcements and adjusted geometry of the housing
made from poly ether ether ketone with 30% short glass fibre reinforcements, the internal
stress of the housing was reduced below yield stress of the material. |
Secondary keywords: |
master thesis;optimization;carbon fibers;PEEK;pumps;finite element method;3D printing; |
Type (COBISS): |
Master's thesis/paper |
Study programme: |
0 |
Embargo end date (OpenAIRE): |
1970-01-01 |
Thesis comment: |
Univ. Ljubljana, Fak. za strojništvo |
Pages: |
XXII, 68 str. |
ID: |
23306811 |