20.500.12556/RUL-118654 Simulacija temperatur tribološkega kontakta Simulation of temperature in tribological contact Za določitev temperature tribološkega kontakta obstaja več načinov, medtem pa je kontaktna temperatura polimernih materialov slabše raziskano področje. Magistrsko delo se osredotoča na določitev temperature tribološkega kontakta polimernih materialov z metodo končnih elementov. Numerični model temelji na tribološkem preizkuševališču pin-on-disk vse od geometrijskega modela, materialnih lastnosti do vstopnih parametrov. Rezultati numerične simulacije so predstavljeni vzporedno z rezultati modificiranega tribološkega testa za merjenje telesne in površinske temperature. Delo prikazuje dva načina določitve robnih pogojev prenosa toplote. Prvi način temelji na pregledu literature, v drugem delu pa so robni pogoji določeni na podlagi eksperimentalnega dela z merjenjem temperature površine preizkušanca med tribološkim testom. S pravilno izbiro matematičnega modela, predpisa robnih pogojev prestopa toplote in koeficienta particije toplote lahko natančno ocenimo telesno temperaturo pina in temperaturo površine pina ter diska. Hkrati model omogoča izračun temperature tribološkega kontakta in določitev mesta lokalnih maksimumov ter minimumov. Rezultati numerične simulacije odstopajo od eksperimentalno določenih vrednosti temperature za manj kot 1 %. Izdelan numerični model omogoča simuliranje temperaturnega profila pin-on-disk tribološkega testa v širšem območju testnih parametrov. There are several ways to determine the temperature of tribological contact, however the contact temperature of polymeric materials is not a widely researched topic. The master's thesis focuses on determining the tribological contact temperature of polymeric materials using the finite element method. The numerical model is based on the pin-on-disk tribological test of the geometric model, material properties and input parameters. The results of the numerical simulation are presented in parallel with the results of the modified tribological test for measuring body and surface temperature. The thesis presents two methods of determining the boundary conditions of heat transfer. The first method is based on scientific literature. In the second method the boundary conditions are determined on the basis of experimental work with measurements of the surface temperature of the test subject during the tribological test. With the appropriate choosing of the mathematical model, predetermining the boundary conditions of heat transfer and heat partition coefficient, we can accurately estimate the body temperature of the pin and the surface temperature of the pin and disk. The model also enables the calculation of the tribological contact temperature and the determination of local maxima and minima. The results of numerical simulation show a deviation from the experimentally determined temperature values by less than 1%. The developed numerical model enables simulation of the temperature profile of the pin-on-disk tribological test in a wider range of test parameters. numerični model metoda končnih elementov pin-on-disk tribološki kontakt kontaktna temperatura generacija toplote polimerni materiali numerical model finite element method pin-on-disc tribological contact contact temperatures heat generation polymeric materials true false false [K. Breskvar] Slovenski jezik Angleški jezik Magistrsko delo/naloga 2020-08-29 08:31:07 2020-08-29 08:31:11 2023-11-03 08:27:24 0000-00-00 00:00:00 2020 0 Ljubljana 0 XXII, 83 str. 0000-00-00 NiDoloceno NiDoloceno NiDoloceno 0000-00-00 0000-00-00 0000-00-00 539.92:678:519.61(043.2) 222772 27753731 5601.pdf 5601.pdf 1 63A6D85AE073D3A9A540C8E285DDE301 52bb538ae77077cc5191b5f083e02ec9bb399dd055fe23bc41e1ab0e6c9a3ce7 8d772bfe-a1b9-11eb-a523-00155dcfd717 https://repozitorij.uni-lj.si/Dokument.php?lang=slv&id=133042 Fakulteta za strojništvo 0 0 0