| 引用本文: | 王海涛,秦子增,宋旭民,等.牵顶伞对大型降落伞抽打现象的作用.[J].国防科技大学学报,2010,32(4):49-54.[点击复制] |
| WANG Haitao,QIN Zizeng,SONG Xumin,et al.Effects of the Attached Apex Drogue on Phenomenon of Bull Whipping in the Deployment Process of Large Parachute[J].Journal of National University of Defense Technology,2010,32(4):49-54[点击复制] |
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| 牵顶伞对大型降落伞抽打现象的作用 |
| 王海涛1, 秦子增1, 宋旭民2, 郭鹏1 |
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(1.国防科技大学 航天与材料工程学院，湖南 长沙 410073;2.装备指挥技术学院 重点实验室，北京 101416)
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| 摘要: |
| 对某大型降落伞系统的拉直过程进行多阶段、多有限段和多自由度的动力学建模。通过仿真研究了牵顶伞和剥离带等改进措施对主伞拉直后伞衣抽打现象影响，重点分析比较了带与不带牵顶伞时伞衣位形、抽打速度、偏离距离等参数的变化，分析结果可为大型降落伞的工程设计、改进和使用提供理论支持。 |
| 关键词: 牵顶伞 抽打现象 抽打速度 偏离距离 剥离带 |
| DOI： |
| 投稿日期：2010-03-02 |
| 基金项目:国家部委资助项目 |
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| Effects of the Attached Apex Drogue on Phenomenon of Bull Whipping in the Deployment Process of Large Parachute |
| WANG Haitao1, QIN Zizeng1, SONG Xumin2, GUO Peng1 |
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(1.College of Aerospace and Materials Engineering, National Univ. of Defense Technology， Changsha 410073, China;2.Key Laboratory of Academy of Equipment Commanding and Technology, Beijing 101416， China)
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| Abstract: |
| Based on the finite element thought, a multistage, multi-finite-element and multi-freedom dynamic model of the deployment process of a large parachute was built. The effects of the attached apex drogue and peel off band on the phenomenon of bull whipping formed after the deployment process of the main parachute were studied through simulation. The analysis was focused on the comparison of shape movements of canopy, velocity of bull whipping and distance of departure with or without the attached apex drogue. The conclusion can provide theoretic help for the engineering design department in designing, improving and using the large parachute. |
| Keywords: attached apex drogue phenomenon of bull whipping velocity of bull whipping distance of departure peel off band |
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