| 灼热桥丝式电火工品发火可靠性设计方法 |
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| 引用本文： | 董海平,蔡瑞娇,穆慧娜,曹建华.灼热桥丝式电火工品发火可靠性设计方法[J].含能材料,2008,16(5):560-563. |
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| 作者姓名： | 董海平 蔡瑞娇 穆慧娜 曹建华 |
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| 作者单位： | 北京理工大学爆炸科学与技术国家重点实验室,北京,100081 |
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| 摘 要： | 提出一种灼热桥丝式电火工品发火可靠性设计方法。该方法首先建立桥丝升温模型和药剂温度分布模型,然后根据热量平衡方程和初选的设计参数计算药剂临界发火能量,并判断发火可靠度裕度是否满足要求,否则重新进行设计。采用该方法通过调整设计参数,计算得某电作动器的临界发火电压为4.75 V,发火可靠度裕度系数为1.2,可使产品满足要求。
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| 关 键 词： | 军事化学与烟火技术 灼热桥丝式电火工品 感度 桥丝 药剂 发火可靠度 |
| 收稿时间： | 2008/4/11 0:00:00 |
Firing Reliability Design of Hot Bridge-wire Electro-Explosive Device |
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| DONG Hai-ping,CAI Rui-jiao,MU Hui-na and CAO Jian-hua.Firing Reliability Design of Hot Bridge-wire Electro-Explosive Device[J].Chinese Journal of Energetic Materials,2008,16(5):560-563. |
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| Authors: | DONG Hai-ping CAI Rui-jiao MU Hui-na and CAO Jian-hua |
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| Affiliation: | State Key Laboratory of Explosion Science and Technology, Beijing Institute of Technology, Beijing 100081, China;State Key Laboratory of Explosion Science and Technology, Beijing Institute of Technology, Beijing 100081, China;State Key Laboratory of Explosion Science and Technology, Beijing Institute of Technology, Beijing 100081, China;State Key Laboratory of Explosion Science and Technology, Beijing Institute of Technology, Beijing 100081, China |
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| Abstract: | A firing reliability design method for hot bridge-wire electro-explosive device was put forward.Firstly,the temperature rising model of bridge-wire and temperature distribution model of explosive were constructed;secondly,the critical firing energy of explosive was calculated based on energy-balance equation and selected parameters;finally,margin of firing reliability of initiator was calculated.If the margin can not meet the reliability requirement of product,parameters would be adjusted and margin of firing reliability would be calculated again.By using the method above and adjusting the design parameters,the critical firing voltage of an electro-explosive actuated device is 4.75 V and its margin is 1.2.The calculation result shows that the product can meet the reliability requirements. |
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| Keywords: | military chemistry and pyrotechnics technique hot bridge-wire electro-explosive device sensitivity bridge-wire explosive firing reliability |
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