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Physical Characteristics of Twin-Tube Shock Absorber

Journal Article
2014-01-2001
ISSN: 1946-3995, e-ISSN: 1946-4002
DOI: https://doi.org/10.4271/2014-01-2001
Published March 24, 2014 by SAE International in United States
Physical Characteristics of Twin-Tube Shock Absorber
Sector:
Citation: Amornsawaddirak, T., Lapapong, S., Songschon, S., and Okuma, M., "Physical Characteristics of Twin-Tube Shock Absorber," SAE Int. J. Passeng. Cars - Mech. Syst. 7(1):375-381, 2014, https://doi.org/10.4271/2014-01-2001.
Language: English

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.