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。
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.
出处
《国防科技大学学报》
EI
CAS
CSCD
北大核心
2004年第2期13-16,共4页
Journal of National University of Defense Technology
关键词
主充气
质量阻尼弹簧模型
伞衣投影面积
伞绳张力
final inflation
mass spring damper model
canopy projection area
tension of suspension line
