| 徐如远,张生鹏,王韶光,蒲泽良.基于性能参数退化的发动机推进剂加速退化试验建模[J].装备环境工程,2022,19(4):14-21. XU Ru-yuan,ZHANG Sheng-peng,WANG Shao-guang,PU Ze-liang.Modeling of Accelerated Degradation Test of Engine Propellant Based on Performance Parameter Degradation[J].Equipment Environmental Engineering,2022,19(4):14-21. |
| 基于性能参数退化的发动机推进剂加速退化试验建模 |
| Modeling of Accelerated Degradation Test of Engine Propellant Based on Performance Parameter Degradation |
| 投稿时间：2021-01-05 修订日期：2021-02-23 |
| DOI：10.7643/issn.1672-9242.2022.04.003 |
| 中文关键词: 推进剂 加速退化试验 激活能 加速因子中图分类号:TJ450 V417+.2 文献标识码:A 文章编号:1672-9242(2022)04-0014-08 |
| 英文关键词:propellant accelerated degradation test activation energy acceleration factor |
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| 中文摘要: |
| 目的 针对某火箭弹发动机推进剂加速退化试验数据，建立性能参数退化模型，分别基于最大伸长率和最大抗拉强度等不同参数，计算推进剂的激活能和不同温度下的加速因子。方法 建立基于退化轨迹的性能参数退化模型，对发动机推进剂进行加速退化试验建模，利用最小二乘法计算性能变化参数，利用阿伦尼斯模型计算加速模型的参数，并得到激活能和加速因子。结果 针对推进剂加速试验数据，给出推进剂激活能和不同温度下加速因子的计算方法。采用基于退化轨迹的性能参数退化模型，可有效评估推进剂的寿命。结论 该方法可有效地对推进剂加速试验数据进行建模，给出激活能和加速因子，更能反映推进剂的寿命特征，为寿命评估提供支撑。 |
| 英文摘要: |
| 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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