Physical Characteristics of Twin-Tube Shock Absorber

Journal article

Authors/Editors

SZATHYS SONGSCHON

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Publication Details

Author list: Amornsawaddirak T., Lapapong S., Songschon S., Okuma M.

Publisher: SAE International

Publication year: 2014

Volume number: 7

Issue number: 1

Start page: 375

End page: 381

Number of pages: 7

ISSN: 1946-3995

eISSN: 1946-3995

URL: https://www.scopus.com/inward/record.uri?eid=2-s2.0-84903453412&doi=10.4271%2f2014-01-2001&partnerID=40&md5=12eb56a77e9b3eba28a12c4248b63e7a

Languages: English-Great Britain (EN-GB)

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Abstract

In an automotive suspension, a shock absorber plays a significant role to enhance the vehicle performances, particularly ride comfort and road holding. Because of its important influences on the overall vehicle performances, the understanding of its physical characteristics is essential. Thus, this paper develops a mathematical model of twin-tube shock absorber that is widely used in modern production cars. The model is derived based on a rational polynomial formulation. This formulation generally represents the flow behaviors of fluid across a restriction. Further, simulation results are compared to those obtained from experiments to determine the model accuracy. The result comparison illustrates that the model is able to describe the behavior of shock absorber with slight discrepancies. ฉ 2014 SAE International.

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