Application of Multibody Dynamics Tools for Determination of Engine Excited Turbocharger Vibrations

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216305%3A26210%2F20%3APU138399" target="_blank" >RIV/00216305:26210/20:PU138399 - isvavai.cz</a>
Result on the web
<a href="https://www.engmech.cz/im/im/page/proc" target="_blank" >https://www.engmech.cz/im/im/page/proc</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.21495/5896-3-384" target="_blank" >10.21495/5896-3-384</a>

Result language
angličtina
Original language name
Application of Multibody Dynamics Tools for Determination of Engine Excited Turbocharger Vibrations
Original language description
The problem of turbocharger rotor vibration is widely published in the world literature. However, areas requiring more detailed investigation are the vibration caused by the kinematic excitation of the turbocharger housing including the housing stiffness consideration. The aim of this paper is to analyse the vibration caused by the excitation from the internal combustion engine (ICE) and to present vibration on a key component of the turbocharger, which is a radial hydrodynamic bearing. Due to the nature of the problem, a multibody dynamics based tool is used, supplemented with sub-models of bearings. The non-linear model allows an effective solution of the vibration induced by the existence of rotor resonance states, rotor instabilities of the bearing or excitation from the ICE. The results presented on the radial bearing show that additional side frequency components and their orders appear in the frequency response spectrum. In the state of strong excitation, these frequency components can cause an increase in the acoustic emissions of the turbocharger as well as the entire powertrain.
Czech name
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Czech description
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Project
<a href="/en/project/TE01020020" target="_blank" >TE01020020: Josef Bozek Competence Centre for Automotive Industry</a><br>
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Publication year
2020
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

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