Publication detail

Axial and Pressure Thrust Stiffness of Metal Bellows for Vibration Isolators

MACHÁČEK, O. KUBÍK, M. STRECKER, Z. ROUPEC, J. NOVÁK, P. MAZŮREK, I.

English title

Axial and Pressure Thrust Stiffness of Metal Bellows for Vibration Isolators

Type

conference paper

Language

en

Original abstract

Metal bellows are used as a spring element and simultaneously as a container (shell) for a damping medium in vibration isolators, especially in applications where any leakage is inadmissible. Dynamic behaviour of these isolators is affected by axial stiffness of bellows and by a resistance against axial deformation of bellows filled with fluid, which is in this article called pressure thrust stiffness. A method of the pressure thrust stiffness determination is discussed in this study. The method uses FEM model, which has been verified by stiffness measurement of a chosen bellows. Consequently, the sensitivity analysis of bellows dimensions to axial and pressure thrust stiffness was performed to find a dimension parameter of bellows which allows to adjust the ratio between axial and pressure thrust stiffness. Sensitivity analysis shows that the stiffness ratio of metal bellows can be adjusted by two dimensional parameters – mean diameter of bellows and corrugation width.

English abstract

Metal bellows are used as a spring element and simultaneously as a container (shell) for a damping medium in vibration isolators, especially in applications where any leakage is inadmissible. Dynamic behaviour of these isolators is affected by axial stiffness of bellows and by a resistance against axial deformation of bellows filled with fluid, which is in this article called pressure thrust stiffness. A method of the pressure thrust stiffness determination is discussed in this study. The method uses FEM model, which has been verified by stiffness measurement of a chosen bellows. Consequently, the sensitivity analysis of bellows dimensions to axial and pressure thrust stiffness was performed to find a dimension parameter of bellows which allows to adjust the ratio between axial and pressure thrust stiffness. Sensitivity analysis shows that the stiffness ratio of metal bellows can be adjusted by two dimensional parameters – mean diameter of bellows and corrugation width.

Keywords in English

metal bellows; axial stiffness; pressure thrust stiffness; vibration isolator

Released

26.02.2018

ISSN

2261-236X

Book

MATEC Web of Conferences

Volume

153

Number

2018

Edition number

Volume 153 (2018)

Pages from–to

1–5

Pages count

5

BIBTEX


@inproceedings{BUT146173,
  author="Ondřej {Macháček} and Michal {Kubík} and Zbyněk {Strecker} and Jakub {Roupec} and Petr {Novák} and Ivan {Mazůrek},
  title="Axial and Pressure Thrust Stiffness of Metal Bellows for Vibration Isolators",
  booktitle="MATEC Web of Conferences",
  year="2018",
  volume="153",
  number="2018",
  month="February",
  pages="1--5",
  issn="2261-236X"
}