Publication detail

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

NOVOTNÝ, P. DLUGOŠ, J. VACULA, J.

Original Title

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

Type

conference paper

Language

English

Original Abstract

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.

Keywords

Rotor dynamics, engine excitation, turbocharger, vibroacoustic.

Authors

NOVOTNÝ, P.; DLUGOŠ, J.; VACULA, J.

Released

11. 5. 2020

ISBN

978-80-214-5896-3

Book

ENGINEERING MECHANICS 2020

Edition

1st edition

Edition number

1

Pages from

384

Pages to

387

Pages count

4

URL

https://www.engmech.cz/im/im/page/proc

BibTex

@inproceedings{BUT167665,
  author="Pavel {Novotný} and Jozef {Dlugoš} and Jiří {Vacula}",
  title="Application of Multibody Dynamics Tools for Determination of Engine Excited Turbocharger Vibrations",
  booktitle="ENGINEERING MECHANICS 2020",
  year="2020",
  series="1st edition",
  number="1",
  pages="384--387",
  doi="10.21495/5896-3-384",
  isbn="978-80-214-5896-3",
  url="https://www.engmech.cz/im/im/page/proc"
}