航天器工程2026，Vol.35Issue(1)：115-121,7.DOI:10.3969/j.issn.1673-8748.2026.01.015
基于数字化仿真的航天器接地系统潜通路分析
Sneak Circuit Analysis of Spacecraft Grounding Systems Based on Digital Simulation
许皓 1王晶燕 1赵健宇 1程瑶 1汪静 1杜青1
作者信息
- 1. 北京空间飞行器总体设计部,北京 100094
- 折叠
摘要
Abstract
To address the challenges posed by the complex interconnections and high redundancies of spacecraft grounding systems which render traditional sneak circuit analysis methods inade-quate in accuracy constructing grounding system network trees,quantifying results,and achie-ving acceptable analysis efficiency,this paper proposes a sneak circuit analysis method that in-tegrates connectivityequivalent modeling with digital simulation.By defining a set of minimal ele-mental parameter models and their combinations,the proposed method employs digital models to construct the connectivity relationships and electrical characteristics of the grounding system.The method is suitable for extended application based on existing electrical system design and simulation platforms,thereby expanding the applicability of sneak circuit analysis to spacecraft grounding systems.While ensuring analytical correctness,the proposed method enables the inte-gration of grounding system design and sneak circuit analysis.Compared with the conventional serial workflow,where design and analysis are performed sequentially,it supports a more effi-cient parallel design and analysis verification mode,thereby improving overall analysis efficiency.The method has been validated through application to the grounding system of a spacecraft as-sembly.A comparison between the analysis results and measured data demonstrates that the pro-posed method can accurately identify existing sneak circuits within the grounding system.Com-pared with traditional sneak circuit analysis methods that rely on manual construction of network trees,the proposed method exhibits clear advantages in terms of quantitative analysis capabilities and analysis efficiency.关键词
数字化仿真/航天器/接地系统/潜通路分析Key words
digital simulation/spacecraft/grounding system/sneak circuit analysis分类
航空航天引用本文复制引用
许皓,王晶燕,赵健宇,程瑶,汪静,杜青..基于数字化仿真的航天器接地系统潜通路分析[J].航天器工程,2026,35(1):115-121,7.
