适应火工装置冲击环境的铝蜂窝缓冲特性研究

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摘要针对火工装置发射过程中对卫星平台产生的冲击，设计了一种基于铝蜂窝的新型空间发射缓冲结构，通过火药密爆试验和铝蜂窝准静态压溃试验分别建立了空间火工发射装置内弹道模型和铝蜂窝压溃模型，在此基础上建立了发射后坐动力学模型，并重点研究了火药药量和铝蜂窝内径对发射后坐特性的影响。研究结果表明：当火药药量增大0.3 g，后坐力平均值增大了1.95%，牵引体发射速度增大了5.10%，后坐位移增大了7.64%，后坐力持续时间减小10.3%。当铝蜂窝内径从148 mm分别减小1 mm和2 mm时，后坐力平均值增大了4.06%和9.08%，牵引体发射速度增大了0.22%和0.54%，后坐位移增大了3.38%和15.24%。同时以上参数的合理选择可以有效降低发射后坐力并保证牵引体的发射性能。

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	史文辉1
	岳帅1
	刘洲2
	肖余之3
	杜忠华1
	刘志2
	高光发1

关键词 ：火工装置, 铝蜂窝, 发射后坐, 缓冲特性

Abstract：Aiming at the impact on the satellite platform during the launch of the pyrotechnic device, a new launch buffer structure using an aluminum honeycomb was designed. Then the internal ballistic model of the pyrotechnic device and aluminum honeycomb crushing model was established through the closed bomb tests of gunpowder and the quasi-static tests of aluminum honeycomb. Then the launch recoil model was found on this basis. And the effects of the charge of gunpowder and the inner diameter of aluminum honeycomb on the recoil characteristics were studied. The results show that when the powder charge increased by 0.3 g, the average recoil increased by 1.95%, the velocity of the mass block increased by 5.10%, the recoil displacement increased by 7.64%, and the recoil duration decreased by 10.3%. When the inner diameter of the aluminum honeycomb decreases from 148 mm by 1 mm and 2 mm, respectively, the average recoil increases by 4.06% and 9.08%, the velocity of the mass block increases by 0.22% and 0.54%, and the recoil displacement rises by 3.38% and 15.24%. And the reasonable selection of the above parameters can effectively reduce the launch recoil and ensure the launch performance of the mass block.

Key words： pyrotechnic device aluminum honeycomb launch recoil buffering characteristics

收稿日期: 2023-04-10 出版日期: 2024-03-15

引用本文:

史文辉1，岳帅1，刘洲2，肖余之3，杜忠华1，刘志2，高光发1. 适应火工装置冲击环境的铝蜂窝缓冲特性研究[J]. 振动与冲击, 2024, 43(5): 292-301.
SHI Wenhui1,YUE Shuai1,LIU Zhou2,XIAO Yuzhi3,DU Zhonghua1,LIU Zhi2,GAO Guangfa1. Aluminum honeycomb buffering characteristics adapted to impact environment of pyrotechnic device. JOURNAL OF VIBRATION AND SHOCK, 2024, 43(5): 292-301.

链接本文:

http://jvs.sjtu.edu.cn/CN/ 或 http://jvs.sjtu.edu.cn/CN/Y2024/V43/I5/292

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