Detail publikačního výsledku

Torsional vibration analysis of crank train with low friction losses

DRÁPAL, L.; NOVOTNÝ, P.

Original Title

Torsional vibration analysis of crank train with low friction losses

English Title

Torsional vibration analysis of crank train with low friction losses

Type

WoS Article

Original Abstract

High level of mechanical efficiency is exacted from internal-combustion engines. The reduction of friction losses of crankshaft main bearings can significantly contribute to the enhancement of this efficiency. For this purpose, an innovative design of a crankshaft is developed. The potential of computational modelling during the development of this innovative crank train is described in the article. The dynamics of the whole crank train is solved by using a multi-body system software, where flexible finite-element bodies along with hydrodynamic bearings are incorporated. Regarding the simulation results, attention is paid to the torsional vibration and its analysis, including concept design of a torsional damper, because a reduction of friction losses is associated with the improvement of torsional vibration in this case.

English abstract

High level of mechanical efficiency is exacted from internal-combustion engines. The reduction of friction losses of crankshaft main bearings can significantly contribute to the enhancement of this efficiency. For this purpose, an innovative design of a crankshaft is developed. The potential of computational modelling during the development of this innovative crank train is described in the article. The dynamics of the whole crank train is solved by using a multi-body system software, where flexible finite-element bodies along with hydrodynamic bearings are incorporated. Regarding the simulation results, attention is paid to the torsional vibration and its analysis, including concept design of a torsional damper, because a reduction of friction losses is associated with the improvement of torsional vibration in this case.

Keywords

torsional vibration, torsional damper, crank train, crankshaft, multi-body system

Key words in English

torsional vibration, torsional damper, crank train, crankshaft, multi-body system

Authors

DRÁPAL, L.; NOVOTNÝ, P.

RIV year

2018

Released

31.12.2017

Publisher

JVE International

Location

Kaunas, Lithuania

ISBN

1392-8716

Periodical

Journal of Vibroengineering

Volume

19

Number

8

State

Republic of Lithuania

Pages from

5691

Pages to

5701

Pages count

11

Full text in the Digital Library

http://hdl.handle.net/

BibTex

@article{BUT144964,
  author="Lubomír {Drápal} and Pavel {Novotný}",
  title="Torsional vibration analysis of crank train with low friction losses",
  journal="Journal of Vibroengineering",
  year="2017",
  volume="19",
  number="8",
  pages="5691--5701",
  doi="10.21595/jve.2017.17876",
  issn="1392-8716"
}