Publication detail

Design and Simulation of Progressive Crank Train

DRÁPAL, L. NOVOTNÝ, P.

Czech title

Návrh a simulace pokrokového klikového mechanismu

English title

Design and Simulation of Progressive Crank Train

Type

conference paper

Language

en

Original abstract

This paper describes efficiency enhancing of an internal-combustion engine by means of improvements in mechanical efficiency of its crank train. The keynote is the reduction of number of crankshaft main bearings to gain reduced crankshaft power losses. The progressive concept of an assembled crankshaft derives benefits from forging, sheet plate molding, and laser welding. For examination of not only power losses benefits, but also dynamic behaviour challenges, the state-of-the-art computational methods are used. The computational model, including modally reduced flexible bodies, is assembled as well as numerically solved in a Multi-Body System. An interaction between crankshaft and engine block and between crankshaft and connecting rods is simultaneously solved via hydrodynamic model of a journal bearing.

Czech abstract

Tento článek popisuje zvyšování účinnosti spalovacího motoru prostřednictvím zvýšení mechanické účinnosti jeho klikového mechanismu. Hlavní myšlenkou je snížení počtu hlavních ložisek, jež přináší snížení třecích ztrát. Pokroková koncepce klikového hřídele využívá výhod kování, tváření a laserového svařování. Přínos v oblasti třecích ztrát, jakož celkové dynamické chování, jsou stanoveny pomocí pokročilých soudobých výpočetních metod. Výpočtový model, obsahující modálně redukovaná pružná tělesa, je sestaven a numericky řešen v prostředí Multi-Body System. Vzájemné působení mezi klikovým hřídelem a blokem motoru i mezi klikovým hřídelem a ojnicemi je zahrnuto prostřednictvím hydrodynamického modelu kluzného ložiska.

English abstract

This paper describes efficiency enhancing of an internal-combustion engine by means of improvements in mechanical efficiency of its crank train. The keynote is the reduction of number of crankshaft main bearings to gain reduced crankshaft power losses. The progressive concept of an assembled crankshaft derives benefits from forging, sheet plate molding, and laser welding. For examination of not only power losses benefits, but also dynamic behaviour challenges, the state-of-the-art computational methods are used. The computational model, including modally reduced flexible bodies, is assembled as well as numerically solved in a Multi-Body System. An interaction between crankshaft and engine block and between crankshaft and connecting rods is simultaneously solved via hydrodynamic model of a journal bearing.

Keywords in Czech

klikový mechanismus, ztrátový výkon, Muti-Body System

Keywords in English

crank train, power losses, Multi-Body System

RIV year

2015

Released

22.10.2015

Publisher

Kaunas University of Technology

Location

Kaunas, Lithuania

ISBN

9955-09-935-6

ISSN

1822-296X

Book

Transport Means 2014: Proceeding of the 19th International Scientific Conference

Volume

2015

Number

1

Pages from–to

240–243

Pages count

4

BIBTEX


@inproceedings{BUT118021,
  author="Lubomír {Drápal} and Pavel {Novotný},
  title="Design and Simulation of Progressive Crank Train",
  booktitle="Transport Means 2014: Proceeding of the 19th International Scientific Conference ",
  year="2015",
  volume="2015",
  number="1",
  month="October",
  pages="240--243",
  publisher="Kaunas University of Technology",
  address="Kaunas, Lithuania",
  isbn="9955-09-935-6",
  issn="1822-296X"
}