| HTPB推进剂药柱的湿扩散及湿应力有限元分析 |
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| 引用本文： | 王玉峰,邢耀国,李高春,张勇. HTPB推进剂药柱的湿扩散及湿应力有限元分析[J]. 兵工学报, 2011, 32(6): 651-656 |
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| 作者姓名： | 王玉峰 邢耀国 李高春 张勇 |
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| 作者单位： | （海军航空工程学院 飞行器工程系， 山东 烟台 264001） |
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| 摘 要： | 为研究湿度对固体火箭发动机的影响，提出了HTPB推进剂药柱中湿气扩散及湿应力的数学模型和有限元模型，并对其湿气扩散和湿应力进行了有限元分析计算。结果表明，环境越潮湿，药柱内部的吸湿情况越严重，湿应力越大，Von Mises湿应力最大值始终出现在星尖处，温度对其湿扩散也有一定的影响，高温环境下湿气扩散速度相对较高。所以，...
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| 关 键 词： | 航空、航天推进系统 药柱 湿扩散 湿应力 有限元方法 |
The Finite Element Analysis of Moisture Diffusion and Stress in HTPB Propellant Grain |
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| WANG Yu-feng,XING Yao-guo,LI Gao-chun,ZHANG Yong. The Finite Element Analysis of Moisture Diffusion and Stress in HTPB Propellant Grain[J]. Acta Armamentarii, 2011, 32(6): 651-656 |
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| Authors: | WANG Yu-feng XING Yao-guo LI Gao-chun ZHANG Yong |
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| Affiliation: | (Department of Airborne Vehicle Engineering, Naval Aeronautical and Astronautical University, Yantai 264001, Shandong, China) |
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| Abstract: | The mathematical model and the FE model of moisture diffusion and stress are proposed for studying the effects of humidity on solid rocket motor,and the FEM is employed to simulate the moisture diffusion and stress in HTPB grain.The results indicate that,the effect of humidity on grain can not be ignored.The hygroscopic condition of grain increases with increasing of humidity of environment,and the moisture diffusion can lead to moisture stress.The largest Von Mises stress appears at star needle.The speed o... |
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| Keywords: | propulsion system of aviation and aerocraft grain moisture diffusion moisture stress finite element method |
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