Qing-Yun Yuan, Yong-Wei Sun, Xi-Jun Zhang. A three-dimensional simplified simulation model based on charge conservation law for internal charging in spacecraft [J]. Acta Physica Sinica, 2019, 68(19): 195201-1
- Acta Physica Sinica
- Vol. 68, Issue 19, 195201-1 (2019)
Fig. 1. 3-D simulation scheme for internal charging.内带电三维仿真方案
Fig. 2. Internal charging model of back grounded planar board.背面接地的平板内带电模型
Fig. 3. Mesh on space and time domain in the finite difference time domain method.时域有限差分计算过程的空间与时间离散
Fig. 4. Schema of conductivity enhance due to intense electric field (T = 293 K).
电导率的强电场效应图示(T = 293 K)
Fig. 5. Flowchart for the iterative algorithm.迭代算法流程图
Fig. 6. Mesh refinement and the corresponding enlarged electric field.关键点处的网格加密和对应的电场分布
Fig. 7. 3-D computation of internal charging on the Comsol platform.基于Comsol平台的内带电三维求解图示
Fig. 8. Importing Q j of Geant4 into computation by interpolation function in Comsol.
利用插值函数导入Geant4的计算结果Q j
Fig. 9. Configurations of internal charging numerical simulation.内带电数值计算设置
Fig. 10. Comparison of the charging potential in time domain.时域充电电位对比(背面接地)
Fig. 11. Comparisons in cases of front &both surfaces grounding.正面与双面接地情况下的电位对比
Fig. 12. Structure diagram of PCB sample and its crust.电路板试样与外壳结构示意图
Fig. 13. Diagram of the experiment system for PCB internal charging.电路板内带电实验系统示意图
Fig. 14. Comparison of charging results from experiment and numerical simulation.实验与仿真结果的对比
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Table 1. Comparison of CCL model and RIC model.
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