Zvinyorwa zvekudzidza zve turbocharger industry
Yakayerwa rotor vibrations yemota turbocharger rotor yakaunzwa uye maitikiro ekuchinja anotsanangurwa. Iwo makuru anonakidza echisikigo maitiro eiyo rotor / inotakura sisitimu ndiyo gyroscopic conical kumberi modhi uye gyroscopic yekushandura yekumberi modhi, ese ari maviri anenge akaomarara emuviri modhi nekukotama zvishoma. Izvo zviyero zvinoratidza kuti sisitimu inoratidza mafambiro mana makuru. Yekutanga huru frequency ndeye synchronous vibration (Synchronous) nekuda kweiyo rotor kusaenzana. Yechipiri inotonga frequency inogadzirwa nemafuta kutenderera / chikwapuro chemukati memvura mafirimu, ayo anofadza gyroscopic conical kumberi modhi. Yechitatu huru frequency inokonzerwawo nemafuta anoputika / chikwapuro chemafirimu emukati, izvo zvino zvinofadza gyroscopic yekushandura mberi mode. Yechina huru frequency inogadzirwa nemafuta kutenderera / chikwapuro chekunze kwemafirimu emvura, ayo anofadza gyroscopic conical kumberi modhi. Superharmonics, subharmonics uye mafrequency ekubatanidza-akagadzirwa neaya makuru mafrequencies-anogadzira mamwe ma frequency, ayo anogona kuoneka mu frequency spectra. Kufuridzirwa kwemamiriro akasiyana ekushanda pane rotor vibrations akaongororwa.
Mukumhanya kwakasiyana-siyana, simba re turbocharger rotors mu-full-floating ring bearings inotungamirirwa nemafuta whirl / whirl phenomena inoitika mukati uye kunze kwemafirimu emvura emvura inoyangarara. Oil whirl/whip phenomena ndeye-self-excited vibrations, zvichikonzerwa nekuyerera kwemvura mugomba rekubereka.
Reference
L. San Andres, JC Rivadeneira, K. Gjika, C. Groves, G. LaRue, Chishandiso chechokwadi chekufungidzira kwe turbocharger nonlinear dynamic response: kusimbiswa kunopesana nedata rebvunzo, Proceedings of ASME Turbo Expo 2006, Simba reNyika, Gungwa uye Mhepo. , 08–11 Chivabvu, Barcelona, Spain, 2006.
L. San Andres, J. Kerth, Thermal effects pakuita kweinoyangarara ring bearings yematurbocharger, Proceedings of the Institution of Mechanical Engineers Chikamu J: Journal of Engineering Tribology 218 (2004) 437–450.
Nguva yekutumira: Kubvumbi-25-2022