MODELLING THE SHOCK ABSORBER PISTON VALVE USING 2-WAY FLUID-STRUCTURE INTERACTION

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Transport Problems

Silesian University of Technology

Subject: Economics, Transportation, Transportation Science & Technology

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VOLUME 16 , ISSUE 4 (December 2021) > List of articles

MODELLING THE SHOCK ABSORBER PISTON VALVE USING 2-WAY FLUID-STRUCTURE INTERACTION

Daniel BUCZKOWSKI * / Grzegorz NOWAK

Keywords : shock absorber; Fluid-Structure Interaction; CFD; damping forces; piston valve

Citation Information : Transport Problems. Volume 16, Issue 4, Pages 45-57, DOI: https://doi.org/10.21307/tp-2021-059

License : (CC BY 4.0)

Received Date : 03-July-2020 / Accepted: 03-December-2021 / Published Online: 24-December-2021

ARTICLE

ABSTRACT

The aim of this study is to examine the strongly coupled Fluid-Structure Interaction approach as a comprehensive method of predicting the performance of the shock absorber piston valve. For this purpose, numerical simulation sand experimental testing are carried out. The coupled CFD-FEA numerical model described in this article, contrary to the attempts made so far, takes into account the influence of contact between valve discs and the initial conditions of the disc stack preload. The model is based on the actual valve geometry used in the shock absorber design. As a result, the described approach is intended for use in industrial applications in development works, in particular, at the conceptual stage. To prove the reliability of the model, two valve compositions are chosen to be measured on a test bench and modelled in FSI simulations. For both of them, a satisfactory level of correlation is achieved, with the correlation error below 10% and well-predicted valve opening points. As a result, it is proved that the 2- way FSI approach has great potential to be successfully used to investigate the damper valve operation.

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