EFFECT ANALYSIS OF THE PARAMETERS OF HYDRO-PNEUMATIC SUSPENSION SYSTEM ON VEHICLE RIDE COMFORT
Journal: International Journal of Advanced Research in Engineering and Technology (IJARET) (Vol.12, No. 01)Publication Date: 2021-01-31
Authors : Vu Thi Hien Le Xuan Long Le Van Quynh Nguyen Van Liem Bui Van Cuong;
Page : 422-430
Keywords : Hydro-pneumatic suspension system; Initial parameter; Rubber spring; Air chamber; Damping hole; Ride comfort.;
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Abstract
The purpose of this study is to analyze the effects of the parameters of hydropneumatic suspension on vehicle ride comfort. In order to achieve this purpose, a quarter-vehicle vertical dynamic model with two degrees of freedom is established under the random road surface excitation. A new mathematical model with combination of rubber and hydro-pneumatic springs for a hydro-pneumatic suspension system is proposed to reduce vehicle noise as well as improve vehicle ride. The parameters of the hydro-pneumatic suspension system such as the initial pressure and volume in air chamber and the initial diameter of damping orifice are respectively analyzed according to the international standard ISO 2631-1. The study results indicate that the suspension parameters has a great effect on the vehicle ride comfort. This study provides useful references for the semi-active hydro-pneumatic suspension system design of vehicle
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