| 降落伞主充气阶段数值模拟 |
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| 引用本文： | 彭勇,张青斌,秦子增. 降落伞主充气阶段数值模拟[J]. 国防科技大学学报, 2004, 26(2): 13-16 |
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| 作者姓名： | 彭勇 张青斌 秦子增 |
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| 作者单位： | 国防科技大学航天与材料工程学院,湖南,长沙410073;国防科技大学航天与材料工程学院,湖南,长沙410073;国防科技大学航天与材料工程学院,湖南,长沙410073 |
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| 摘 要： | 建立了降落伞主充气模型。前体、伞绳及伞衣离散为一系列弹性连接的质量节点,伞衣内部流场为二维无粘、不可压流。利用模型计算了主充气阶段伞衣形状变化、伞衣投影面积变化及伞绳张力。计算结果与试验结果进行了比较,相当吻合。
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| 关 键 词： | 主充气 质量阻尼弹簧模型 伞衣投影面积 伞绳张力 |
| 文章编号： | 1001-2486(2004)02-0013-04 |
| 收稿时间： | 2003-10-10 |
| 修稿时间： | 2003-10-10 |
Simulation of Parachute Final Inflation Phase |
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| PENG Yong,ZHANG Qingbin and QIN Zizeng. Simulation of Parachute Final Inflation Phase[J]. Journal of National University of Defense Technology, 2004, 26(2): 13-16 |
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| Authors: | PENG Yong ZHANG Qingbin QIN Zizeng |
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| Affiliation: | College of Aerospace and Materials Engineering, National University of Defense Technology, Changsha 410073, China;College of Aerospace and Materials Engineering, National University of Defense Technology, Changsha 410073, China;College of Aerospace and Materials Engineering, National University of Defense Technology, Changsha 410073, China |
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| Abstract: | A final inflation model for parachutes was established. The forebody, suspension lines and canopy were modeled as a series of elastically connected mass nodes. The flow field inside the canopy was two-dimensional inviscid, incompressible flow. The model was used to calculate the variations of the canopy shape, the variations of canopy projection area and the tension of the suspension line during the final inflation phase. Numerical results were compared with the experimental data and found to be in agreement. |
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| Keywords: | final inflation mass spring damper model canopy projection area tension of suspension line |
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