Shock Response Test and Simulation for Satellite Fine Component

CHEN Ye; ZHENG Mingxuan; ZHU Kongjun; JIN Lei; PENG Haikuo; FENG Yanjun

doi:10.7643/issn.1672-9242.2026.07.015

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Equipment Environmental Engineering ›› 2026, Vol. 23 ›› Issue (7) : 154-160. DOI: 10.7643/issn.1672-9242.2026.07.015

Aviation and Aerospace Equipment

Shock Response Test and Simulation for Satellite Fine Component

CHEN Ye¹, ZHENG Mingxuan¹, ZHU Kongjun², JIN Lei¹, PENG Haikuo¹, FENG Yanjun¹

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Abstract

The work aims to explore the damage risk of satellite precision components caused by instantaneous, high-magnitude shock of pyrotechnic device unlocking. The shock response of these components was analyzed by combining macroscopic experiments with mesoscopic modeling. A pyrotechnic device unlocking shock test system was designed to obtain the cross-interface transmission laws of the shock, as well as the shock response on the external housing of the electronic unit. A mesoscopic finite element model was established for the internal chip and substrate. Using the shock response measured on the unit housing as load conditions, a shock response spectrum analysis was conducted to investigate the mechanical response of the chip and substrate. Experimental measurements of the response along the transmission path revealed that shock acceleration attenuated rapidly within the satellite structure, dropping to less than 6 000 m/s² upon reaching the unit housing. Simulation results regarding the shock response of internal components indicated that the location with the minimum strength margin was the chip pin. With a margin of 2.57, the component met strength requirements of a margin greater than zero. The shock from the pyrotechnic device attenuates significantly across multiple interfaces,and it will not cause damage to the chip structures.

Key words

satellite / pyrotechnic device / shock / fine component / response spectrum analysis

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CHEN Ye, ZHENG Mingxuan, ZHU Kongjun, JIN Lei, PENG Haikuo, FENG Yanjun. Shock Response Test and Simulation for Satellite Fine Component[J]. Equipment Environmental Engineering. 2026, 23(7): 154-160 https://doi.org/10.7643/issn.1672-9242.2026.07.015

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