A study on the shock reduction method for the super-zip
SUN Jing1, CHEN Shaorui1, WENG Fei2, HU Zhenxing1, CHEN Rong3
1.Beijing Institute of Astronautical Systems Engineering, Beijing 100076, China;
2.Department of Engineering Mechanics, Dalian University of Technology, Dalian 116024, China;
3.College of Liberal Arts and Sciences, National University of Defense Technology, Changsha 410073, China
Abstract:The Super-Zip separation device will be applied to the payload connection and release structure due to its pollution-free and high load-bearing characteristics. As a direct-drive linear separation device of the pyrotechnics, it is accompanied with large impact action in the process of separation. How to reduce the detonation effect of the impact source and control the transmission of the impact during the unlocking process is an important prerequisite for the wide application of this type of separation device. In this paper, the LS-DYNA software is used to simulate and analyze the separation process of the Super-Zip separation device and the in-plane shock wave transmission law. In addition, based on the prediction results of the two simulation schemes, the test verification of one of the shock reduction schemes is carried out. The results show that the Finite Element Analysis(FEA)can effectively guide the development of the test and it is pointed out that reducing the collision area between the flat tube and the connecting frame can effectively improve the impact environment of the whole Super-Zip separation process.
孙璟1,陈劭睿1,翁飞2,胡振兴1,陈荣3. 膨胀管-凹槽板爆炸分离装置降冲击研究[J]. 振动与冲击, 2022, 41(8): 244-249.
SUN Jing1, CHEN Shaorui1, WENG Fei2, HU Zhenxing1, CHEN Rong3. A study on the shock reduction method for the super-zip. JOURNAL OF VIBRATION AND SHOCK, 2022, 41(8): 244-249.
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