| 不同地面条件重装空投气囊着陆缓冲过程数值分析 |
| |
| 引用本文： | 连伟欣,侯斌,孙建红,王从磊,张彤.不同地面条件重装空投气囊着陆缓冲过程数值分析[J].航空工程进展,2022,13(1):68-75. |
| |
| 作者姓名： | 连伟欣 侯斌 孙建红 王从磊 张彤 |
| |
| 作者单位： | 南京航空航天大学,南京航空航天大学,南京航空航天大学,航空工业宏光空降装备有限公司，南京航空航天大学宏光空降空投联合技术中心,南京航空航天大学 |
| |
| 基金项目： | 江苏高校优势学科建设工程资助项目 |
| |
| 摘 要： | 刚性地面假设的重型装备空投的数值结果无法准确模拟空投的着陆姿态，需使用土壤地面对空投的缓冲性能进行研究。使用LS-DYNA有限元仿真软件对土壤地面和刚性地面下空投的着陆缓冲性能进行对比，研究刚性地面的适用条件；并研究土壤地面下不同横向风速对空投着陆缓冲性能的影响。结果表明：空投竖直冲击地面时，两种地面下货物的最大过载差...
|
| 关 键 词： | 空投系统 土壤模型 缓冲气囊 有限元 土壤变形 |
| 收稿时间： | 2021/1/26 0:00:00 |
| 修稿时间： | 2021/3/20 0:00:00 |
Numerical Analyses of Airdrop Landing Process Impacting the Rigid and Soil Ground |
| |
| lian wei xin,hou bin,sun jian hong,wang cong lei and zhang tong.Numerical Analyses of Airdrop Landing Process Impacting the Rigid and Soil Ground[J].Advances in Aeronautical Science and Engineering,2022,13(1):68-75. |
| |
| Authors: | lian wei xin hou bin sun jian hong wang cong lei and zhang tong |
| |
| Institution: | Nanjing University of Aeronautics and Astronautics,,Nanjing University of Aeronautics and Astronautics,, |
| |
| Abstract: | Airdrop systems are widely used in aerospace fields such as a landing and recovery equipment. The LS-SDYNA was used to simulate the landing process, and to compare the performance of the airdrop system under the rigid and soil ground. Meanwhile, the effect of different lateral wind velocities on the airdrop impact performance was analyzed. The results show that the difference of the maximum overload of the cargo is very small between the case of the rigid and the soil ground when the airdrop system only strikes the ground perpendicularly; the difference is much greater and the deformation effect of soil ground is significant under lateral wind conditions. |
| |
| Keywords: | Airdrop system soil model cushion airbag finite element soil deformation |
|
| 点击此处可从《航空工程进展》浏览原始摘要信息 |
| 点击此处可从《航空工程进展》下载免费的PDF全文 |
|
