Investigation on the Characteristics of a New Structure Brake Distribution Valve

Abstract

A brake distribution valve is an important part of aircraft hydraulic systems. To realize the integration and lightweight design of traditional structure valves, boost the response speed of valves, and reduce the influence of nonwork zone and damping on valve performance, this paper presents a new structure brake distribution valve which consists of pressure reducing unit, overflow unit, and embedded shuttle valve instead of the traditional valve structure. Numerical simulations and model verification experiments of the entire valve demonstrate that the new structure valve's dynamic performance has been significantly improved on the premise of ensuring linear characteristics. The simulation results show that the response time of the new structure valve is shorter than that of the traditional structure valve, with a rate of 30.77%, in case of step response simulations, and the tracking error of the valve reduces by nearly 5% in sinusoidal response simulations.