ANALYSIS DYNAMICAL OF THE PRECISION FLUID METERING DEVICE VALVE
In this paper we study the dynamics of the fluid metering device valve. The behavior of such system is described by a set of two coupled ordinary differential equations with discontinuous right-hand sides. We show that this system can operate in the modes with dry friction. We have found boundaries of the sliding modes both numerically and analytically. These types of dynamics correspond to the oscillations of the valve with pauses. We illustrate how the dynamics of the valve can be changed qualitatively under variation of the friction coefficient and amplitude of the external force. In the parameter plane we determine numerically three domains with different dynamical behavior. These regions correspond to the oscillations of the valve without pauses, to the regimes with two pauses during the period of periodic oscillations and to the fixed position of the valve.