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| Modeling of Accelerated Degradation Test of Engine Propellant Based on Performance Parameter Degradation |
| Received:January 05, 2021 Revised:February 23, 2021 |
| View Full Text View/Add Comment Download reader |
| DOI：10.7643/issn.1672-9242.2022.04.003 |
| KeyWord:propellant accelerated degradation test activation energy acceleration factor |
| Author | Institution |
| XU Ru-yuan |
Aerospace Science and Industry Corporation Defense Technology Research and Test Center, Beijing , China |
| ZHANG Sheng-peng |
Aerospace Science and Industry Corporation Defense Technology Research and Test Center, Beijing , China |
| WANG Shao-guang |
32181 Unit of PLA, Xi'an , China |
| PU Ze-liang |
Aerospace Science and Industry Corporation Defense Technology Research and Test Center, Beijing , China |
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| Abstract: |
| According to the acceleration degradation test data of a rocket engine propellant, a performance parameter degradation model was established, and the activation energy of the propellant and the acceleration factor at different temperatures were calculated based on different parameters such as maximum elongation and maximum tensile strength. The performance parameter degradation model based on the degradation trajectory was established to model the acceleration degradation test of the engine propellant, the performance change constant was calculated by the least square method, and the parameters of the acceleration model were calculated by the Arrhenius model, and the activation energy and acceleration factor were obtained. It is further concluded that the life of the propellant under normal stress provides support. According to the propellant acceleration test data, the calculation method of propellant activation energy and acceleration factor at different temperatures is given. The performance parameter degradation model based on the degradation trajectory can effectively evaluate the life of the propellant. This method can effectively model the propellant acceleration test data, give the activation energy and acceleration factor, and better reflect the life characteristics of the propellant and provide support for life evaluation. |
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