20.500.12556/RUL-134232 Modal analysis and rotor-dynamics of an interior permanent magnet synchronous motor an experimental and theoretical study This paper investigates mechanical vibrations of an interior permanent magnet (IPM) synchronous electrical motor designed for a wide range of speeds by virtue of the modal and rotordynamic theory. Mechanical vibrations of the case study IPM motor components were detected and analyzed via numerical, analytical and experimental investigation. First, a finite element-based model of the stator assembly including windings was set up and validated with experimental and analytical results. Second, the influence of the presence of the motor housing on the natural frequencies of the stator and windings was investigated by virtue of numerical modal analysis. The experimental and numerical modal analyses were further carried out on the IPM rotor configuration. The results show that the natural frequencies of the IPM rotor increase due to the presence of the magnets. Finally, detailed numerical rotordynamic analysis was performed in order to investigate the most critical speeds of the IPM rotor with bearings. Based on the obtained results, the key parameters related to mechanical vibrations response phenomena, which are important when designing electrical motors with interior permanent magnets, are provided. The main findings reported here can be used for experimental and theoretical mechanical vibration analysis of other types of rotating electrical machines. electrical machines IPM motor machine design mechanical vibrations gyroscopic effect critical speed numerical modeling finite element method električni stroji električni motor s trajnimi magneti načrtovanje električnih strojev mehanske vibracije žiroskopski učinek kritične hitrosti numerično modeliranje metoda končnih elementov true false true Angleški jezik Slovenski jezik Članek v reviji 2022-01-03 10:34:32 2022-01-03 10:34:33 2022-09-13 03:54:04 0000-00-00 00:00:00 2020 0 0 25 str. iss. 17, art. 5881 Vol. 10 2020 0000-00-00 Zaloznikova Objavljeno NiDoloceno 0000-00-00 0000-00-00 0000-00-00 621.31 2076-3417 10.3390/app10175881 26164995 RAZ_Corovic_Selma_2020.pdf RAZ_Corovic_Selma_2020.pdf 1 33FFAA5B68E57A9855A98ED29B457A4B c205e1ac8ea3491461759a1b68bdef508c10a3d4ffb1e039b8b606475e2ef42a 695567a6-6c78-11ec-abdb-00155dcfd717 https://repozitorij.uni-lj.si/Dokument.php?lang=slv&id=152579 https://www.mdpi.com/2076-3417/10/17/5881 1 322e26a6-6c78-11ec-abdb-00155dcfd717 https://repozitorij.uni-lj.si/Dokument.php?lang=slv&id=152578 Fakulteta za elektrotehniko 0 0 0