Publication detail

Verification of FEM Design Process of Vehicle Powertrain Mounts

VOPAŘIL, J. DRÁPAL, L. PROKOP, A.

Czech title

Návrh lůžka pohonné jednotky pomocí MKP

English title

Verification of FEM Design Process of Vehicle Powertrain Mounts

Type

conference paper

Language

en

Original abstract

A variety of engineering structures are composed of linear structural components connected by elastomers, because elastomers are commonly used materials for vibration isolation components due to their damping properties. Typical example of this component in automotive, which is also presented in this article, are elastomeric powertrain mounts used as a connection part in engine-vehicle structures. The elastomer parts of these components have highly complicated shape and analytical methods for computation of stiffness and damping properties cannot give sufficiently accurate results. This is the reason for using a finite-element method already in early stage of the product development. This article presents a one possible way for computational development process, where the material model of used elastomer is got from a small test component (cheaply producible) and then applied in real component (gearbox mount).

Czech abstract

Elastomery se v technické praxi široce využívají coby materiály pro výrobky tlumicí vibrace. Typickým příkladem, jejž popisuje i tento článek, jsou lůžka pohonné jednotky, prostřednictvím nichž je tato pohonná jednota uložena v karoserii vozidla. Lůžka pohonné jednotky a jejich díly vyrobené z elastomeru mají poměrně složity tvar, jenž způsobuje značné komplikace při stanovování pružných a tlumicích vlastností analytickými metodami. Proto je vhodné využít metodu konečných prvů (MKP) již v raných fázích vývoje těchto dílů. Tento článek představuje jeden z možných postupů vývoje, kdy materiálový model je stanoven na základě malého zkušebního vzorku (snadno a levně vyrobitelný) a následně je aplikován na složitou součástku (lůžko převodovky).

English abstract

A variety of engineering structures are composed of linear structural components connected by elastomers, because elastomers are commonly used materials for vibration isolation components due to their damping properties. Typical example of this component in automotive, which is also presented in this article, are elastomeric powertrain mounts used as a connection part in engine-vehicle structures. The elastomer parts of these components have highly complicated shape and analytical methods for computation of stiffness and damping properties cannot give sufficiently accurate results. This is the reason for using a finite-element method already in early stage of the product development. This article presents a one possible way for computational development process, where the material model of used elastomer is got from a small test component (cheaply producible) and then applied in real component (gearbox mount).

Keywords in Czech

dynamika elastomerů, ztrátový součinitel, kinematické buzení, lůžko motoru

Keywords in English

dynamics of elastomers, loss factor, ground excitation, engine mount

Released

20.09.2017

Publisher

Kaunas University of Technology

Location

Kaunas, Lithuania

ISSN

1822-296X

Book

Transport Means 2017 – Proceedings of the 21st International Conference

Volume

2

Number

21

Pages from–to

741–746

Pages count

6

BIBTEX


@inproceedings{BUT144962,
  author="Jan {Vopařil} and Lubomír {Drápal} and Aleš {Prokop},
  title="Verification of FEM Design Process of Vehicle Powertrain Mounts",
  booktitle="Transport Means 2017 – Proceedings of the 21st International Conference",
  year="2017",
  volume="2",
  number="21",
  month="September",
  pages="741--746",
  publisher="Kaunas University of Technology",
  address="Kaunas, Lithuania",
  issn="1822-296X"
}