中国空间科学技术

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降落伞初始充气阶段数值模拟

彭勇,张青斌,程文科,秦子增   

  1. 国防科技大学航天与材料工程学院,国防科技大学航天与材料工程学院,国防科技大学航天与材料工程学院,国防科技大学航天与材料工程学院 长沙410073 ,长沙410073 ,长沙410073 ,长沙410073
  • 发布日期:2003-06-25

Simulation of Parachute Initial Inflation Phase

PengYong Zhang Qingbin Cheng Wenke Qin Zizeng(College of Aerospace and Material Technology, NUDT, Changsha 410073)   

  • Published:2003-06-25

摘要： 首先建立了初始充气模型 ;将前体、伞绳及伞衣离散为一系列弹性连接的质量节点 ,伞衣内部流场为一维不可压流 ;最后利用模型计算了初始充气阶段伞衣形状变化、伞衣投影面积变化及伞绳张力

关键词: 降落伞, 充气, 数学模型, 数值仿真, 航天器返回

Abstract: An initial inflation model for parachutes is established. The forebody, suspension lines and canopy are modeled as a series of elastically connected mass nodes. The flow field inside canopy is one-dimensional incompressible flow. Finally, the model is used to calculate the variations of canopy shape, the variations of canopy projection area and the tension of suspension lines during initial inflation phase.