Prepackaging propulsion system composite material gas cylinder storage test method and system

• Main Authors: QI BAOHENG, LIU JIAXING, XIONG SEN, FANG LIANG, WANG XINXIN, YUE HUAN, GONG QUANXIN
• Format: Patent
• Language: Chinese; English
• Published: 14.03.2023
• Subjects: INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIRCHEMICAL OR PHYSICAL PROPERTIES; MEASURING; PHYSICS; TESTING

The invention provides a storage test method and system for a composite material gas cylinder of a pre-packaging propulsion system, and the method comprises the steps: recognizing that a storage weak link is aging and creep according to the use condition and failure mode of the composite material gas cylinder of the pre-packaging propulsion system; acceleration factors representing aging and creep of the composite material are obtained through a resin matrix accelerated aging test and a composite material creep test; performing a high-temperature aging acceleration test and a hydraulic strength creep acceleration test on the composite gas cylinder by using the acceleration factor to simulate aging and creep processes of the gas cylinder after long-term storage after pre-packaging and inflation; then a gas cylinder pressure cycle test is carried out, and the process that gas pressure in the gas cylinder changes along with temperature in the long-term storage process is simulated; and finally, carrying out an i