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| 固体火箭发动机寿命预估的一种考虑 | |
| 引用本文： | 朱智春,蔡峨. 固体火箭发动机寿命预估的一种考虑[J]. 推进技术, 1996, 17(4): 10-13,16 |
| 作者姓名： | 朱智春 蔡峨 |
| 作者单位： | 北京航空航天大学宇航学院 |
| 摘 要： | 利用弹性－粘弹性对应原理，分析长期贮存固体推进剂药柱由环境温度变化引起的热应力，计算药柱损伤，并对发动机寿命进行预估。理论分析和算法具有普遍性，可供工程设计参考。 |
| 关 键 词： | 固体火箭推进剂，寿命预测，粘弹性，热应力，累积损伤 |
A METHOD FOR SOLID ROCKET MOTOR LIFE PREDICTION |
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| Zhu Zhichun and Cai E. A METHOD FOR SOLID ROCKET MOTOR LIFE PREDICTION[J]. Journal of Propulsion Technology, 1996, 17(4): 10-13,16 | |
| Authors: | Zhu Zhichun and Cai E |
| Affiliation: | School of Astronautics, Beijing Univ. of Aeronautics and Astronautics, Beijing, 100083;School of Astronautics, Beijing Univ. of Aeronautics and Astronautics, Beijing, 100083 |
| Abstract: | n analysis on thermal stress of solid rocket motor grain in storage due to ambienttemperature variation is presented according to elastic-viscoelastic correspondence principle, and theeffects of ageing on mechanical properties of the propellant are included. The damage of grain is calculated and the motor life is predicted. The predicting theory and method can be referred in other relatedtechnical designs. |
| Keywords: | Solid rocket propellant Life prediction Viscoelasticity Thermal stress Cumulative damage |
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