Experimental and numerical analysis of laminated carbon fibre-reinforced polymer gears with implicit model for coefficient-of-friction evaluation

Černe, Borut (avtor), Bergant, Zoran (avtor), Šturm, Roman (avtor), Tavčar, Jože (avtor), Zorko, Damijan (avtor)

Laminated composites have so far received little attention as a potential material for gear drive applications. In the presented study, the thermomechanical performance of a newly developed type of epoxy impregnated, autoclave-cured carbon fibre-reinforced polymer gear-running in pair with a steel pinion-was analysed, using a combination of experimental and numerical approaches. The employed methods enabled the identification of the composite’s mechanical, thermal, and tribological characteristics, as related to the studied gear pair application. A newly proposed, finite-element-analysis-based iterative procedure enabled an implicit evaluation of the analysed material pair’s coefficient of friction (COF), which is a key parameter in determining the gear pair’s thermomechanical characteristics. For the considered material pair, a value of 0.34 was identified for the coefficient in the quasi-steady region. As the coefficient is strongly correlated with frictional heat generation and significantly affects the surface shear stress, it can consequently have a meaningful influence on the composite’s wear rate. The developed COF identification procedure was validated using a reciprocating cylinder-on-flat tribological test method. The composite gear’s service life was additionally tested at various running loads, resulting in pitch contact pressures ranging between 400 and 540 MPa. Lifetime gear test results showed a markedly superior performance compared to the high-temperature thermoplastic polyether ether ketone, which is typically employed in the most demanding polymer gear applications. Several methods are additionally proposed that could further improve the developed composite gears’ performance.

• Jezik: Angleški jezik
• Ključne besede: carbon fibre, thermomechanical analysis, finite element method, mechanical testing, composites, autoclave
• Vrsta gradiva: Članek v reviji
• Tipologija: 1.01 - Izvirni znanstveni članek
• Organizacija: FS - Fakulteta za strojništvo
• Status publikacije: Objavljeno
• Različica publikacije: Objavljena publikacija
• Leto izida: 2022
• Št. strani: Str. 246-262
• Številčenje: Vol. 9, iss. 1
• PID: 20.500.12556/RUL-135186
• UDK: 536:620.1/.2
• ISSN pri članku: 2288-5048
• COBISS.SI-ID: 96943363
• Datum objave v RUL: 28.02.2022

Gradivo je del revije

• Naslov: Journal of computational design and engineering
• Skrajšan naslov: J. computational des. eng.
• Založnik: Society of CAD/CAM engineers, Elsevier
• ISSN: 2288-5048
• COBISS.SI-ID: 96935683

Licence

• Licenca: CC BY-NC 4.0, Creative Commons Priznanje avtorstva-Nekomercialno 4.0 Mednarodna
• Povezava: http://creativecommons.org/licenses/by-nc/4.0/deed.sl
• Opis: Licenca Creative Commons, ki prepoveduje komercialno uporabo, vendar uporabniki ne rabijo upravljati materialnih avtorskih pravic na izpeljanih delih z enako licenco.
• Začetek licenciranja: 03.12.2021
• Vezano na: Accepted

Sekundarni jezik

• Jezik: Slovenski jezik
• Ključne besede: ogljikova vlakna, termo mehanska analiza, metoda končnih elementov, mehansko preizkušanje, kompoziti, avtoklav