Experience in application of the FlowVision software package for the prediction of the hydropneumatic suspensions parameters of heavy-duty vehicles

The results of the algorithm development for the prediction of dynamic parameters of hydropneumatic suspension of heavy-duty vehicles have been presented. The computational technique employs the proposed combined approach based on the joint consideration of non-dimensional statement for dynamic characteristics of overall suspension system and axisymmetric non-stationary Navier-Stokes equations for the viscous fluid motion inside the working capacity. The Navier-Stokes equations are solved by using the capabilities of the FlowVision software package. The solutions of both statements are coupled on the moving piston's surface, when its velocity and position, defined by non-dimensional equations, stand to be the input boundary condition for the set of hydrodynamic equations applied on the moving grid. In turn, the results of hydrodynamic equations solution assigned the fluid flow through the throttle, defining the overall balance between suspension volumes. The obtained numerical results confirm the possibility of analyzing the behavior of hydropneumatic suspension using the adaptive capabilities of FlowVision package.