| 引用本文: | 王海涛,秦子增,宋旭民,等.大型降落伞拉直过程中的抽打现象分析.[J].国防科技大学学报,2010,32(5):34-38.[点击复制] |
| WANG Haitao,QIN Zizeng,SONG Xumin,et al.Analysis of the Phenomenon of Bull Whipping in the Deployment Process of Large Parachute[J].Journal of National University of Defense Technology,2010,32(5):34-38[点击复制] |
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| 大型降落伞拉直过程中的抽打现象分析 |
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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;3.总装备部武器装备论证中心，北京 100101))
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| 摘要: |
| 针对某大型降落伞回收系统主伞拉直过程中出现的抽打现象进行了分析，根据其拉直过程的特点将其划分为五个阶段，分别建立了各阶段的实体模型和约束模型，通过模型的组合建立了各阶段的多体动力学模型，将各阶段模型连接进一步组成该型号大型降落伞拉直全过程的动力学模型。仿真分析了该型号大型降落伞出现抽打现象时的伞衣位形、顶部伞衣速度、伞绳和伞衣的偏离距离以及张力的变化，总结了抽打现象形成时的一些特征数据，分析结果可为大型降落伞设计、改进、使用等提供参考。 |
| 关键词: 抽打 降落伞 拉直 伞衣 空投试验 |
| DOI： |
| 投稿日期：2010-05-05 |
| 基金项目:国家部委资助项目 |
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| Analysis of the Phenomenon of Bull Whipping in the Deployment Process of Large Parachute |
| WANG Haitao1, QIN Zizeng1, SONG Xumin2,3, GUO Peng1, TAO Wusha4 |
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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;3.;4.3.General Armament Department Weapons Demonstration Centre, Beijing 100101, China)
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| Abstract: |
| The bull whipping phenomenon in the deployment process of a large parachute was analyzed. Based on its character, the dynamic model of the whole process was built in five stages. At first, the basic model and restriction model were built respectively. Through their combination, the dynamic model of multibody systems of every stage was built. Then by connecting the dynamic model of five stages, the dynamic model of the entirely deployment process was accomplished. Through analyzing the results of simulation, the canopy displacement and shape, the velocity of top segment canopy, departure distance and tensile force distributing of canopy and lines when forming the bull whipping phenomenon are educed, some important and character data of the bull whipping phenomenon are summarized. The conclusion can provide reference for the engineering design department to designing, improving and using the large parachute. |
| Keywords: bull whipping parachute deployment canopy airdrop test |
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