Experimental Research and Mathematical Model on Pressure Characteristics of Damping Hole of Hydro-pneumatic Suspension

A test platform based on hydro-pneumatic suspension was set up to research the pressure characteristic of damping hole of this kind suspension. A series of experiments on damping holes of different diameters were carried out, and the pressure on both sides of damping holes were recorded. A mathematical model of this platform was established using knowledge of fluid mechanics; various parameters of all hydraulic subsystems were analyzed. The results of mathematical model were verified by experiments result. These models can be used to research hydro-pneumatic suspension.