微纳卫星火工冲击载荷缓冲装置设计及验证

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振动与冲击 ›› 2023, Vol. 42 ›› Issue (3) : 187-192.

论文

微纳卫星火工冲击载荷缓冲装置设计及验证

赵相禹1,2,3，赵春娟1,2,3，张雷1,3，陈善搏3，石有胜1,2,3

作者信息 +

Design and verification of pyrotechnic impact load buffer device for micro-nano satellite

ZHAO Xiangyu1,2,3, ZHAO Chunjuan1,2,3, ZHANG Lei1,3, CHEN Shanbo3, SHI Yousheng3

Author information +

文章历史 +

摘要

火工冲击环境是卫星等航天器经历的最恶劣的力学环境之一，尤其是航天器与运载火箭分离时的冲击最为恶劣。星箭分离冲击会影响有冲击敏感元件的设备甚至航天器的正常工作，严重时甚至能导致发射任务的失败。因此，有必要研究火工冲击环境的抑制措施。文章针对某金属框架微纳卫星在研制阶段星箭分离试验过程中冲击响应过大问题，结合火工冲击载荷来源、火工冲击传递机理以及火工冲击抑制方法，对整星进行了冲击载荷缓冲装置设计并进行了冲击及振动试验验证，试验结果表明，该火工冲击缓冲装置能够将冲击载荷降低70%以上，对航天产品的抗冲击分析及合理的结构设计具有重要意义。

Abstract

The pyrotechnic shock environment is one of the worst mechanical environments experienced by spacecraft such as satellites, especially when the spacecraft is separated from the launch vehicle. The impact of the separation of the stars and arrows will affect the normal operation of equipment with shock-sensitive components and even the spacecraft, and can even lead to the failure of the launch mission in severe cases. Therefore, it is necessary to study the measures to suppress the impact of fireworks on the environment. Aiming at the problem of excessive shock response of a metal-frame micro-nano satellite during the star-arrow separation test during the development stage, the article combines the source of pyrotechnic shock load, the mechanism of pyrotechnic shock transmission and the method of suppressing pyrotechnic shock, and buffers the shock load of the entire star. The device is designed and verified by shock and vibration tests. The test results show that the pyrotechnic shock buffer device can reduce the shock load by more than 70%.The study results were very important for shock resistance analysis and structural design of aerospace products.

导出引用

赵相禹1,2,3，赵春娟1,2,3，张雷1,3，陈善搏3，石有胜1,2,3. 微纳卫星火工冲击载荷缓冲装置设计及验证[J]. 振动与冲击, 2023, 42(3): 187-192

ZHAO Xiangyu1,2,3, ZHAO Chunjuan1,2,3, ZHANG Lei1,3, CHEN Shanbo3, SHI Yousheng3. Design and verification of pyrotechnic impact load buffer device for micro-nano satellite[J]. Journal of Vibration and Shock, 2023, 42(3): 187-192

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