Method for optimizing dynamic characteristics of system selector valve in aircraft hydraulic system

The present invention relates to a method for analyzing dynamic characteristics of a selection valve in a power package system according to pressure fluctuation in an aircraft hydraulic system generated in the beginning of starting of an aircraft and optimizing design variables by extracting the same. The method for optimizing the dynamic characteristics of the system selection valve in the aircraft hydraulic system includes the steps of: (a) supplying an aircraft hydraulic system analysis model for individually modeling a hydraulic pump unit discharging a hydraulic fluid of a high pressure to the inside of the aircraft hydraulic system, a power package unit controlling a fluid pressure in the aircraft hydraulic system and including the system selection valve as a component, an emergency pressure accumulator compressing and storing an emergency hydraulic fluid, and a control unit controlling the general operation of the aircraft hydraulic system; (b) analyzing the dynamic characteristics of the system selection valve by applying one or more environmental conditions of the aircraft hydraulic system to the aircraft hydraulic system analysis model; (c) extracting one or more design variables related to the aircraft hydraulic system, which affect the dynamic characteristics of the system selection valve as a result of the analysis of the step (b); and (d) determining the optimal environmental conditions of the aircraft hydraulic system for optimizing the dynamic characteristics of the system selection valve. [Reference numerals] (S101) Supplying an aircraft hydraulic system analysis model for individually modeling a hydraulic pump unit, a power package unit, an emergency pressure accumulator, and a control unit;(S102) Analyzing the dynamic characteristics of the system selection valve by applying one or more environmental conditions of the aircraft hydraulic system to the aircraft hydraulic system analysis model;(S103) Extracting one or more design variables related to the aircraft hydraulic system, which affect the dynamic characteristics of the system selection valve as a result of the analysis of the S102 step;(S104) Determining the optimal environmental conditions of the aircraft hydraulic system for optimizing the dynamic characteristics of the system selection valve after combining one or more design variables of the aircraft hydraulic system extracted in the S103 step