| 降落伞充气过程的参数化仿真软件 |
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| 引用本文： | 吕伯平,尚琨,高兴龙,张青斌.降落伞充气过程的参数化仿真软件[J].系统仿真技术,2013(4):292-298. |
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| 作者姓名： | 吕伯平 尚琨 高兴龙 张青斌 |
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| 作者单位： | [1]空军装备部,北京100843 [2]复杂航空系统仿真重点试验室,北京100076 [3]国防科学技术大学航天科学与工程学院,湖南长沙410073 |
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| 基金项目： | 国家自然科学基金资助项目（51375486） |
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| 摘 要： | 降落伞充气过程是典型的流固耦合问题，具有复杂的耦合动力学行为。基于ANSYS／LS—DYNA软件的参数化设计语言和任意拉格朗日欧拉算法开发了适合于航空伞型降落伞充气展开过程的三维仿真系统；介绍了系统主要算法思想和基本组成结构；以某型开缝降落伞的充气过程为例，通过人机交互界面输入伞形、伞衣几何尺寸、流场几何尺寸、伞衣材料等系统参数，数值模拟了降落伞开伞过程，得到了开伞过载，伞衣3D外形变化等计算结果，验证了仿真系统的有效性和可行性。该仿真软件可应用于降落伞低速空投试验和风洞试验的模拟和技术验证。
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| 关 键 词： | LS—DYNA 降落伞充气过程 流固耦合 任意拉格朗日欧拉 |
Parachute Inflation Process Parameterize Simulation Software |
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| LV Boping,SHANG Kun,GAO Xinglong,ZHANG Qingbin.Parachute Inflation Process Parameterize Simulation Software[J].System Simulation Technology,2013(4):292-298. |
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| Authors: | LV Boping SHANG Kun GAO Xinglong ZHANG Qingbin |
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| Affiliation: | Air Force Equipment Department, Beijing 100843,China; 2. Complex Aviation System Simulation Key Laboratory, Beijing 100076, China; 3. College of Aerospace Science and Engineering,National University of Defense and Technology ,Changsha 410073 ,China) |
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| Abstract: | dynamic Parachute inflation is a typical fluid-structure interaction problem, with sophisticated coupling ehaviors. Basing on the parametric design language and Arbitrary Lagrange Euler method within ANSYS/LS-DYNA finite element code, a simulation software for parachute inflation process is developed, the algorithm and construction of this software are introduced. Targeting on some type of slits parachute, the parachute type, parachute geometric size, flow geometric size and parachute material property are input through the interaction face, the opening process is simulated, and the opening loads as well as the 3D shape deformation are obtained,the results validate the efficiency and feasibility of this software. This simulation technique can be applied in simulation and technique verification for low speed airdrop test and wind tunnel test of parachute |
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| Keywords: | LS-DYNA parachute inflation process fluid-structure interaction Arbitrary Lagrange Euler |
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