中国空间科学技术

中国空间科学技术

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降落伞系统附加质量的研究

熊菁,秦小波,程文科   

  1. 国防科技大学航天与材料工程学院,中国运载火箭技术研究院,国防科技大学航天与材料工程学院 长沙410073 ,北京100076 ,长沙410073
  • 发布日期:2002-08-25

The Added Mass Research in Parachute System

Xiong Jing  Qin Xiaobo  Cheng Wenke  (*Institute of Aerospace and Material Engineering,National University of Defense Technology, Changsha 410073) (Institute of Chinese Launch Vehicle, Beijing 100076)   

  • Online:2002-08-25

被引次数

45

摘要： 降落伞在减速系统中已被广泛地运用 ,但是其运动方程的确立 ,尤其是方程中的附加质量项 ,在中国却少有提及。为了弥补此点不足 ,文章对附加质量进行了较全面的阐述 ,从概念引入、在方程中的运用、确定方法及变化规律 ,到对稳定性的影响分析。对于降落伞此类轻质的、柔性的钝体 ,附加质量受到多种因素的影响 ,其规律可由试验数据得出 ;而由根轨迹图分析可知 ,附加质量对稳定下落时的降落伞系统稳定性有着重要影响。

关键词: 降落伞, 附加质量, 运动方程

Abstract: Although the parachute is widely used in deceleration system, it's seldom mentioned the establishment of moving equation and especially the added mass. It's the main reason to give a concrete description of the added mass in parachute, from introduction of concept, and application in equation, to determination and rule of numerical value, and analysis of parachute stability. Because parachute is light, flexible and blunt, its added mass is determined by many factors, which rule could be found from experiment data. And from root locus analysis, its effectin stable dropping of parachute is important.