含能材料
含能材料
함능재료
ENERGETIC MATERIALS
2014年
6期
824-827
,共4页
军事化学与烟火技术%Ni-Cr桥带%发火模型%换能机理%临界发火电流
軍事化學與煙火技術%Ni-Cr橋帶%髮火模型%換能機理%臨界髮火電流
군사화학여연화기술%Ni-Cr교대%발화모형%환능궤리%림계발화전류
military chemistry and pyrotechnic%Ni-Cr bridge-belt%firing model%energy conversion mechanism%critical firing current
为优化设计桥带式电火工品，研究了其换能发火模型，基于傅里叶传热定律，建立了 Ni-Cr金属桥带电火工品发火的数理模型，并给出了临界发火电流的理论计算方法。在5 min和50 ms恒流激励下，采用 D-最优化法测试了两种不同尺寸 Ni-Cr桥带的临界发火电流，将测试结果与理论计算值进行了对比，结果表明两者的误差在14％以内，数理模型合理，可用于设计和计算 Ni-Cr桥带式电火工品的临界发火电流。
為優化設計橋帶式電火工品，研究瞭其換能髮火模型，基于傅裏葉傳熱定律，建立瞭 Ni-Cr金屬橋帶電火工品髮火的數理模型，併給齣瞭臨界髮火電流的理論計算方法。在5 min和50 ms恆流激勵下，採用 D-最優化法測試瞭兩種不同呎吋 Ni-Cr橋帶的臨界髮火電流，將測試結果與理論計算值進行瞭對比，結果錶明兩者的誤差在14％以內，數理模型閤理，可用于設計和計算 Ni-Cr橋帶式電火工品的臨界髮火電流。
위우화설계교대식전화공품，연구료기환능발화모형，기우부리협전열정률，건립료 Ni-Cr금속교대전화공품발화적수리모형，병급출료림계발화전류적이론계산방법。재5 min화50 ms항류격려하，채용 D-최우화법측시료량충불동척촌 Ni-Cr교대적림계발화전류，장측시결과여이론계산치진행료대비，결과표명량자적오차재14％이내，수리모형합리，가용우설계화계산 Ni-Cr교대식전화공품적림계발화전류。
The firing model was studied to optimal design the bridge-belt electric initiating devices. Based on the non-Fourier heat conduction theory,the electro-thermal energy conversion model was established for the stage from heating to firing. And then the correlation of bridge-belt and input energy was obtained by MATLAB analysis. In order to verify its validity,the critical firing cur-rent experiments of Ni-Cr bridge-belts with two sizes were carried out by D-optimal method under the condition of 5 min current input and 50 ms current input. Comparison between the experimental and the analytical demonstrates that the model is reasonable and feasible for designing critical current of Ni-Cr bridge-belt,and the deviation between them is less than 14%.
