Cov ntaub ntawv kawm txog kev lag luam turbocharger

Cov ntaub ntawv kawm txog kev lag luam turbocharger

Kev ntsuas rotor vibrations ntawm lub tsheb turbocharger rotor tau nthuav tawm thiab cov teebmeem tshwm sim tau piav qhia. Lub ntsiab zoo siab ntawm lub rotor / bearing system yog gyroscopic conical rau pem hauv ntej hom thiab gyroscopic translational pem hauv ntej hom, ob qho tib si yuav luag nruj lub cev hom nrog me ntsis dabtsi yog khoov. Cov kev ntsuas qhia tau hais tias lub kaw lus nthuav tawm plaub lub ntsiab zaus. Thawj qhov loj zaus yog synchronous vibration (Synchronous) vim rotor imbalance. Qhov thib ob dominating zaus yog tsim los ntawm cov roj nplawm / nplawm ntawm cov kua hauv cov yeeb yaj kiab, uas ua rau lub zog gyroscopic conical rau pem hauv ntej. Qhov thib peb lub ntsiab zaus kuj tshwm sim los ntawm cov roj nplawm / nplawm ntawm cov yeeb yaj kiab sab hauv, uas tam sim no zoo siab rau gyroscopic translational rau pem hauv ntej hom. Qhov thib plaub lub ntsiab zaus yog tsim los ntawm cov roj nplawm / nplawm ntawm cov kua dej sab nrauv, uas ua rau lub gyroscopic conical rau pem hauv ntej hom. Superharmonics, subharmonics thiab ua ke zaus-tsim los ntawm plaub lub ntsiab zaus-tsim rau lwm zaus, uas tuaj yeem pom nyob rau hauv ntau zaus. Kev cuam tshuam ntawm kev ua haujlwm sib txawv ntawm lub rotor vibrations tau kuaj xyuas.

Nyob rau hauv ntau yam ceev ceev, lub zog ntawm turbocharger rotors nyob rau hauv tag nrho-floating nplhaib bearings yog dominated los ntawm cov roj nplawm / nplawm phenomena tshwm sim nyob rau hauv lub puab thiab txheej kua films ntawm lub floating nplhaib bearings. Roj nplawm / nplawm phenomena yog tus kheej-zoo siab vibrations, induced los ntawm cov kua ntws nyob rau hauv lub bearing sib txawv.

Kev siv

L. San Andres, JC Rivadeneira, K. Gjika, C. Groves, G. LaRue, Lub cuab yeej virtual rau kev kwv yees ntawm turbocharger nonlinear dynamic teb: validation tiv thaiv cov ntaub ntawv xeem, Kev Ua Haujlwm ntawm ASME Turbo Expo 2006, Lub Hwj Chim rau Av, Hiav Txwv thiab Cua , 08–11 May, Barcelona, ​​Spain, 2006.

L. San Andres, J. Kerth, Thermal effects on the performance of floating ring bearings for turbochargers, Proceedings of the Institution of Mechanical Engineers Part J: Journal of Engineering Tribology 218 (2004) 437–450.