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Abstract
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Article Information:
Dynamical Test and Modeling for Hydraulic Shock Absorber on Heavy Vehicle under Harmonic and Random Loadings
Shaohua Li, Yongjie Lu and Liyang Li
Corresponding Author: Shaohua Li
Submitted: January 02, 2012
Accepted: March 02, 2012
Published: July 01, 2012 |
Abstract:
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The aim of this study is to found the suitable loading condition during damper dynamic test and
develop a testing and analysis methodology for obtaining the dynamic properties of shock absorbers for use
in vehicle dynamic simulation. Using harmonic and random loadings, the dynamical characteristics of a
hydraulic shock absorber on heavy vehicle are measured and analyzed. Based on the test data, a piecewise nonlinear
model for the shock absorber is proposed and the model parameters are identified under different
loadings. By comparing the simulation results and field test data of the vehicle responses, the effect of loading
type during the test of shock absorber on model accuracy is researched. Thus it is possible to choose a suitable
loading mode to impel the piston of the shock absorber and build a reasonable absorber model used in vehicle
dynamic simulation.
Key words: Modeling, random loading, shock absorber, test, vehicle dynamics, ,
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Cite this Reference:
Shaohua Li, Yongjie Lu and Liyang Li, . Dynamical Test and Modeling for Hydraulic Shock Absorber on Heavy Vehicle under Harmonic and Random Loadings. Research Journal of Applied Sciences, Engineering and Technology, (13): 1903-1910.
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ISSN (Online): 2040-7467
ISSN (Print): 2040-7459 |
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