| 固体火箭发动机药柱的长期老化效应分析 |
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| 引用本文： | 冯志刚,周建平.固体火箭发动机药柱的长期老化效应分析[J].航空学报,1994,15(12):1507-1511. |
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| 作者姓名： | 冯志刚 周建平 |
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| 作者单位： | 国防科技大学航天技术系 |
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| 摘 要： | 粘弹复合固体推进剂为研究对象,通过实验测得其松弛模量,然后反演出适合有限元分析的蠕变柔量形式,进而分析长期贮存老化对药柱力学性能的影响。在对梁的受拉伸与自重情形下的老化作了分析后,举例分析了真实固体火箭发动机药柱的长期老化效应。
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| 关 键 词： | 药柱 粘弹性 松弛模量 蠕变柔量 |
THE ANALYSIS OF THE LONG-TERM AGING EFFECT OF SOLID PROPELLENT GRAIN |
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| Feng Zhigang,Zhou Jianpjng.THE ANALYSIS OF THE LONG-TERM AGING EFFECT OF SOLID PROPELLENT GRAIN[J].Acta Aeronautica et Astronautica Sinica,1994,15(12):1507-1511. |
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| Authors: | Feng Zhigang Zhou Jianpjng |
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| Institution: | Department of Astronautics, National Univ. of Defen se Tech.Changsha, 410073 |
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| Abstract: | A study of propellent aging,using inversion transfoimation from experimental relaxation functions to creep functions,is presented.The finite element method is intro-duced in the analysis.After having solved the aging problems of beams,the long term ag-ing effect of a solid propellent grain is also analyzed as an example. |
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| Keywords: | propellent grain viscoelasticity relaxation function creep function |
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