Numerical Analyses of Heavy Equipment Airdrop with Cushion Airbag Landing Process Impacting the Rigid and Soil Ground
The numerical results of heavy equipment airdrop based on rigid ground assumption cannot accurately simulate the landing attitude of airdrop,so it is necessary to study the cushioning performance of airdrop under soil ground. In order to study the suitable condition of rigid ground,the LS-SDYNA soft...
| Main Authors: | , , , , |
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| Format: | Article |
| Language: | zho |
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Editorial Department of Advances in Aeronautical Science and Engineering
2022-02-01
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| Series: | Hangkong gongcheng jinzhan |
| Subjects: | |
| Online Access: | http://hkgcjz.cnjournals.com/hkgcjz/article/abstract/2021014?st=article_issue |
| _version_ | 1811166399584796672 |
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| author | LIAN Weixin HOU Bin SUN Jianhong WANG Conglei ZHANG Tong |
| author_facet | LIAN Weixin HOU Bin SUN Jianhong WANG Conglei ZHANG Tong |
| author_sort | LIAN Weixin |
| collection | DOAJ |
| description | The numerical results of heavy equipment airdrop based on rigid ground assumption cannot accurately simulate the landing attitude of airdrop,so it is necessary to study the cushioning performance of airdrop under soil ground. In order to study the suitable condition of rigid ground,the LS-SDYNA software is 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 is 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. Therefore,soil ground should be used for simulation with lateral wind. Under soil ground the larger of the lateral wind velocity and the initial vertical velocity,the larger of the vertical peak overload. |
| first_indexed | 2024-04-10T15:52:46Z |
| format | Article |
| id | doaj.art-61834b6d0e2a4dc382e9468144781ac5 |
| institution | Directory Open Access Journal |
| issn | 1674-8190 |
| language | zho |
| last_indexed | 2024-04-10T15:52:46Z |
| publishDate | 2022-02-01 |
| publisher | Editorial Department of Advances in Aeronautical Science and Engineering |
| record_format | Article |
| series | Hangkong gongcheng jinzhan |
| spelling | doaj.art-61834b6d0e2a4dc382e9468144781ac52023-02-11T02:27:43ZzhoEditorial Department of Advances in Aeronautical Science and EngineeringHangkong gongcheng jinzhan1674-81902022-02-01131687510.16615/j.cnki.1674-8190.2022.01.0720220107Numerical Analyses of Heavy Equipment Airdrop with Cushion Airbag Landing Process Impacting the Rigid and Soil GroundLIAN Weixin0HOU Bin1SUN Jianhong2WANG Conglei3ZHANG Tong4Key Laboratory of Aircraft Environment Control and Life Support Ministry of Industry and Information Technology, Nanjing University of Aeronautics and Astronautics, Nanjing 210016, ChinaKey Laboratory of Aircraft Environment Control and Life Support Ministry of Industry and Information Technology, Nanjing University of Aeronautics and Astronautics, Nanjing 210016, ChinaKey Laboratory of Aircraft Environment Control and Life Support Ministry of Industry and Information Technology, Nanjing University of Aeronautics and Astronautics, Nanjing 210016, ChinaHongguang Airdrop United Technology Center, Nanjing University of Aeronautics and Astronautics, Nanjing 210016, ChinaKey Laboratory of Aircraft Environment Control and Life Support Ministry of Industry and Information Technology, Nanjing University of Aeronautics and Astronautics, Nanjing 210016, ChinaThe numerical results of heavy equipment airdrop based on rigid ground assumption cannot accurately simulate the landing attitude of airdrop,so it is necessary to study the cushioning performance of airdrop under soil ground. In order to study the suitable condition of rigid ground,the LS-SDYNA software is 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 is 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. Therefore,soil ground should be used for simulation with lateral wind. Under soil ground the larger of the lateral wind velocity and the initial vertical velocity,the larger of the vertical peak overload.http://hkgcjz.cnjournals.com/hkgcjz/article/abstract/2021014?st=article_issueairdrop systemsoil modelcushion airbagfinite elementsoil deformation |
| spellingShingle | LIAN Weixin HOU Bin SUN Jianhong WANG Conglei ZHANG Tong Numerical Analyses of Heavy Equipment Airdrop with Cushion Airbag Landing Process Impacting the Rigid and Soil Ground Hangkong gongcheng jinzhan airdrop system soil model cushion airbag finite element soil deformation |
| title | Numerical Analyses of Heavy Equipment Airdrop with Cushion Airbag Landing Process Impacting the Rigid and Soil Ground |
| title_full | Numerical Analyses of Heavy Equipment Airdrop with Cushion Airbag Landing Process Impacting the Rigid and Soil Ground |
| title_fullStr | Numerical Analyses of Heavy Equipment Airdrop with Cushion Airbag Landing Process Impacting the Rigid and Soil Ground |
| title_full_unstemmed | Numerical Analyses of Heavy Equipment Airdrop with Cushion Airbag Landing Process Impacting the Rigid and Soil Ground |
| title_short | Numerical Analyses of Heavy Equipment Airdrop with Cushion Airbag Landing Process Impacting the Rigid and Soil Ground |
| title_sort | numerical analyses of heavy equipment airdrop with cushion airbag landing process impacting the rigid and soil ground |
| topic | airdrop system soil model cushion airbag finite element soil deformation |
| url | http://hkgcjz.cnjournals.com/hkgcjz/article/abstract/2021014?st=article_issue |
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