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| Simulation and Experimental Verification of Landing Buffer Characteristics of Storage and Transport Launch Box |
| Received:January 13, 2024 Revised:June 27, 2024 |
| View Full Text View/Add Comment Download reader |
| DOI：10.7643/issn.1672-9242.2024.08.007 |
| KeyWord:storage and transport launch box airdrop landing buffer airbag finite element LS-DYNA buffer test platform |
| Author | Institution |
| ZHANG Yu |
Overall Engineering Research Institute of China Academy of Engineering Physics, Sichuan Mianyang , China |
| ZHANG Shuai |
Overall Engineering Research Institute of China Academy of Engineering Physics, Sichuan Mianyang , China |
| ZHOU Bangzhao |
Overall Engineering Research Institute of China Academy of Engineering Physics, Sichuan Mianyang , China |
| YANG Min |
Overall Engineering Research Institute of China Academy of Engineering Physics, Sichuan Mianyang , China |
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| Abstract: |
| The work aims to study the landing buffer performance of a storage and transport launch box under exhaust airbag. The LS-DYNA finite element model of the airdrop system for storage and transport launch box-airbag was established, and the dynamic response of the airdrop system during landing buffer was analyzed. According to the safety standard of airdrop, the rocket overload, rocket axial force and structural stress of each component were discussed, and the simulation model was verified by building a buffer test platform. The overload of the rocket subject to a large impact was slightly greater than 30 g, and the stress at a partition of the frame exceeded the allowable stress, and attention should be paid to protection. The test results were in good agreement with the simulation results, and the error was within ±10%. The simulation model established has high precision and can meet the needs of engineering. The research method and results have certain reference significance for the structure design of storage and transport launch box and the design of landing buffer scheme. |
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