摘要
在高过载环境下引信无法使用物理和化学电源,需备用二次电源。现有研究集中于元器件的结构失效,本文主要研究高过载环境中二次电源参数漂移对其性能的影响。首先,采用霍普金森压杆实验分析了在110000g,125000 g,140000 g,160000 g和180000 g环境下电容值的漂移。然后,通过与仿真结果对比验证了仿真模型的可靠性。通过仿真的方式分析了侵彻环境下二次电源输出电流和电压的漂移情况。结果显示,侵彻峰值过载为45133g,过载时长为480μs时,输出电压漂移0.14%的持续时间为190μs,电流漂移0.13%的持续时间为790μs。侵彻峰值过载为99103 g,过载时长为280μs时,输出电压漂移1.34%的持续时间为140μs,电流漂移6.71%的持续时间为170μs。分析发现,侵彻过程中相同的峰值过载导致的输出电流漂移量大于电压漂移,且高过载持续的时间越长,二次电源输出电流和电压发生漂移的时间越长。
In high overload environments,the fuze cannot use physical and chemical power sources,and a backup secondary power supply is required.The existing research mainly focused on the failure analysis of the component structure,and this paper mainly studied the influence of parameter drift on performance of the secondary power supply in a high overload environment.Firstly,the drift of capacitance values in the environments of 110000 g,125000 g,140000 g,160000 g,and 180000 g was analyzed by Hopkinson pressure bar experiment.Then,the reliability of the simulation model was verified by comparing it with the simulation results.The drift of the output current and voltage of the secondary power supply in the penetrating environment was analyzed by simulation.The results show that the penetration peak overload is 45133 g,and when the overload lasts for 480μs,the output voltage drifts by 0.14% for 190μs,and the current drifts by 0.13% for 790μs.The penetration peak overload is 99103 g,and when the overload lasts for 280μs,the output voltage drifts by 1.34%for 140μs and the current drifts by 6.71% for 170μs.The analysis shows that the same peak overload causes the output current to drift more than the voltage during the penetration process,and the longer the high overload lasts,the longer the output current and voltage of the secondary power supply drift.
作者
张旭东
韩晶
李禄刚
闫思锐
ZHANG Xudong;HAN Jing;LI Lugang;YAN Sirui(School of Mechanical and Electrical Engineering,North University of China,Taiyuan 030051,China;Hubei Sanjiang Aerospace Honglin Exploration and Control Co.,Ltd.,Xiaogan 432000,China)
出处
《中北大学学报（自然科学版）》
CAS
2024年第6期772-782,共11页
Journal of North University of China(Natural Science Edition)
关键词
二次电源
多层陶瓷电容
霍普金森压杆
冲击过载
secondary power supply
multi layer ceramic capacitor
hopkins pressure bar
impact overload
