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史文辉,陈曦,陈允浩,等. 降落伞拉直过程的动力学仿真与试验[J]. 科学技术与工程, 2021, 21(8): 3379-3386.
SHI Wen-hui,chen yun hao,et al.Dynamic Simulation and Test of Parachute Deployment[J].Science Technology and Engineering,2021,21(8):3379-3386.
降落伞拉直过程的动力学仿真与试验
Dynamic Simulation and Test of Parachute Deployment
投稿时间:2020-06-01  修订日期:2020-11-27
DOI:
中文关键词:  降落伞  拉直过程 动力学仿真  地面试验
英文关键词:parachute  parachute deployment  dynamic simulation  ground test
基金项目:
           
作者单位
史文辉 南京理工大学
陈曦 南京理工大学
陈允浩 宏光空降装备有限公司
盛思佳 陆军装备部驻南京地区第一军事代表室
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中文摘要:
      伞降回收是无人机回收的常用方式,降落伞的拉直过程作为伞降回收过程的第一步,具有至关重要的作用。降落伞拉直是通过火箭发动机燃烧产生的持续拉力牵引连接带,从而带动降落伞和伞绳,将降落伞从伞舱内拉出。文章基于非线性有限元理论,通过ABAQUS有限元仿真软件,实现了降落伞拉直过程的动力学模型的建立,研究了火箭在-50℃、+20℃和+55℃状态下对拉直过程的影响。结果表明随着温度的升高,拉直时间变短,伞衣和伞绳的拉直长度变化不大,连接带和伞绳受到的最大拉力变大。并将仿真结果与+55℃状态下的试验进行验证对比,试验结果与仿真结果比较吻合,可见该动力学模型适用于降落伞的拉直过程仿真研究。
英文摘要:
      Parachute recovery is a common way of UAV recovery. As the first step of parachute recovery, parachute deployment process plays an important role. Parachute deployment is to pull the connecting belt through the continuous pulling force generated by the combustion of the rocket engine, so as to drive the parachute and the suspension line, and pull the parachute out of the parachute cabin. Based on the nonlinear finite element theory, the dynamic model of parachute deploying process is established by ABAQUS finite element simulation software, and the influence of rocket on the deploying process at -50℃、+20℃ and +55℃ are studied. The results show that with the increase of temperature, the deploying time becomes shorter, and the deploying length of canopy and parachute rope changed little, and the maximum tension of the connecting belt and the parachute rope becomes larger. The simulation results are compared with the experiments at +55℃, and the results are in good agreement with the simulation results, It can be seen that the dynamic model is suitable for the simulation of parachute deploying process.
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