Schickhofer, Lukas and Antonopoulos, Chris G (2024) Cause–effect relationship between model parameters and damping performance of hydraulic shock absorbers. International Journal of Non-Linear Mechanics, 159. p. 104627. DOI https://doi.org/10.1016/j.ijnonlinmec.2023.104627
Schickhofer, Lukas and Antonopoulos, Chris G (2024) Cause–effect relationship between model parameters and damping performance of hydraulic shock absorbers. International Journal of Non-Linear Mechanics, 159. p. 104627. DOI https://doi.org/10.1016/j.ijnonlinmec.2023.104627
Schickhofer, Lukas and Antonopoulos, Chris G (2024) Cause–effect relationship between model parameters and damping performance of hydraulic shock absorbers. International Journal of Non-Linear Mechanics, 159. p. 104627. DOI https://doi.org/10.1016/j.ijnonlinmec.2023.104627
Abstract
Despite long-term research and development of modern shock absorbers, the effect of variations of several crucial material and model parameters still remains dubious. The goal of this work is therefore a study of the changes of shock absorber dynamics with respect to typical parameter ranges in a realistic model. We study the impact of shim properties, as well as geometric features such as discharge coefficients and bleed orifice cross section. We derive cause–effect relationships by nonlinear parameter fitting of the differential equations of the model and show digressive and progressive quadratic damping curves for shim number and thickness, sharp exponential curves for discharge coefficients, and leakage width, as well as a linear decrease of damping properties with bleed orifice area. Temperature increase affecting material properties, such as density and viscosity of the mineral oil, is found to have a mostly linear relationship with damping and pressure losses. Our results are not only significant for the general understanding of shock absorber dynamics, but also serve as a guidance for the development of specific models by following the proposed methodology.
Item Type: | Article |
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Uncontrolled Keywords: | Suspension, Hydraulic dampers, Dynamical system, Sensitivity analysis |
Divisions: | Faculty of Science and Health Faculty of Science and Health > Mathematics, Statistics and Actuarial Science, School of |
SWORD Depositor: | Unnamed user with email elements@essex.ac.uk |
Depositing User: | Unnamed user with email elements@essex.ac.uk |
Date Deposited: | 01 Mar 2024 09:49 |
Last Modified: | 07 Aug 2024 15:17 |
URI: | http://repository.essex.ac.uk/id/eprint/37478 |
Available files
Filename: Schickhofer_IJNLM_Paper_RIS.pdf
Licence: Creative Commons: Attribution-Noncommercial-No Derivative Works 4.0
Embargo Date: 20 December 2024