20.500.12556/DKUM-58200 Numerična simulacija zračnega hlajenja zavornega diska za tirna vozila Numerical simulation of thermal and structural loads in rolling stock brake disc Diplomsko delo opisuje postopek računalniške simulacije hlajenja zavornega diska tirnega vozila z okoliškim zrakom, za to je bila uporabljena CFD simulacija izvedena s programom ANSYS CFX. Cilj CFD simulacije je bil pridobitev koeficienta prestopa toplote po celotni površini zavornega diska in kolesa. Ti rezultati so bili pridobljeni pri različnih vrtilnih hitrostih. Nato je sledila simulacija prevoda toplote čez disk z upoštevanjem gredi, vijakov in kolesa na katerega je disk pritrjen, robni pogoji za to časovno odvisno simulacijo pa so bili preneseni iz CFD analize. Vnos toplote po torni površini je bil enak tistemu iz realnih testov saj je bila izvedena primerjava z rezultati iz testiranj tega diska. Nato je bila izvedena še časovno odvisna trdnostna analiza zavornega diska. The thesis describes computer simulation of air cooling of rolling stock brake disc. For this CFD simulation ANSYS CFX software was used. The goal of the CFD simulation was to obtain wall heat transfer coefficient at different angular velocities on the surfaces of brake disc and wheel. Than transient thermal simulation including all assembly parts was done. Boundary conditions for dissipation of heat were transferred from CFD simulation. Power input into the disc brake and angular velocity were equal to those measured in real tests as comparison of temperature results was made. Than transient structural analysis was done using ANSYS structural. Termo-mehanska analiza simulacija zavorni disk CFD MKE Thermo-mechanical analysis simulation brake disc CFD HTC MKE true true false [U. Grivc] Slovenski jezik Angleški jezik Diplomsko delo/naloga 2016-04-09 16:01:53 2016-04-21 14:11:35 2022-06-16 03:07:16 2019-07-11 10:31:36 2016 0 Maribor 0 0000-00-00 NiDoloceno NiDoloceno NiDoloceno 0000-00-00 0000-00-00 0000-00-00 [519.6:536.2]:62-712(043.2) 19735574 URN:SI:UM:DK:BFYVEM5K UN_Grivc_Uros_2016.pdf UN_Grivc_Uros_2016.pdf 1 0BB93B22540A30224E7459970B7CDF4F a5af9f8da1ccf9b95315805796deb9151ca3c3e33c4db9fc518a7b5f88d024a8 0bc6d6a8-7c0c-11eb-bb7a-00155d0001ca https://dk.um.si/Dokument.php?lang=slv&id=88358 Fakulteta za strojništvo 0 0 0