Digital Modeling and Dynamic Simulation of Pressurization Feed System

Liquid rocket pressurization feed system is an important part of the rocket power system, and its main function is to achieve the supply of propellant. With the continuous improvement of space technology, the technical requirements of pressurization feed system are also increasing. Based on the modular modeling and simulation method, the article establishes detailed simulation models of the pressure reducing valve and switching valve using the PCD(Pneumatic Component Design) library in AMESim, analyzes the influence of the main parameters on the performance of the valve, establishes the digital model and studies the influence of the system, provides reference for the valve parameter selection and performance optimization, and helps to save time and cost for the development and design of the pressurization feed system.