兵工自动化
兵工自動化
병공자동화
ORDNANCE INDUSTRY AUTOMATION
2014年
9期
38-41
,共4页
电磁轨道炮%速度趋肤效应%电感梯度
電磁軌道砲%速度趨膚效應%電感梯度
전자궤도포%속도추부효응%전감제도
railgun%velocity skin effect%inductance gradient
针对现有文献对速度趋肤效应影响下的电磁轨道炮电感梯度研究不足的问题,从毕奥-萨伐尔定律出发,提出一种新的电感梯度计算方法。指出文献给出的4种电感梯度计算方法的缺点与不足,将轨道中电流假设为均匀分布于轨道的内表面及上、下表面,采用文中方法与文献给出4种计算方法对电感梯度进行分析,并将其计算值与ANSYS仿真及实验得到的电感梯度值进行对比。结果表明:该方法与文献给出4种计算方法所得计算值的变化趋势较为一致,但方法得到的电感梯度值较为接近,具有形式简单、计算准确的优点。
針對現有文獻對速度趨膚效應影響下的電磁軌道砲電感梯度研究不足的問題,從畢奧-薩伐爾定律齣髮,提齣一種新的電感梯度計算方法。指齣文獻給齣的4種電感梯度計算方法的缺點與不足,將軌道中電流假設為均勻分佈于軌道的內錶麵及上、下錶麵,採用文中方法與文獻給齣4種計算方法對電感梯度進行分析,併將其計算值與ANSYS倣真及實驗得到的電感梯度值進行對比。結果錶明:該方法與文獻給齣4種計算方法所得計算值的變化趨勢較為一緻,但方法得到的電感梯度值較為接近,具有形式簡單、計算準確的優點。
침대현유문헌대속도추부효응영향하적전자궤도포전감제도연구불족적문제,종필오-살벌이정률출발,제출일충신적전감제도계산방법。지출문헌급출적4충전감제도계산방법적결점여불족,장궤도중전류가설위균균분포우궤도적내표면급상、하표면,채용문중방법여문헌급출4충계산방법대전감제도진행분석,병장기계산치여ANSYS방진급실험득도적전감제도치진행대비。결과표명:해방법여문헌급출4충계산방법소득계산치적변화추세교위일치,단방법득도적전감제도치교위접근,구유형식간단、계산준학적우점。
In view of the limitations of studying on railgun inductance gradient under the influenced by the velocity skin effect, this paper proposed a new method to calculate inductance gradient of railgun based on the Biot-Savart law. Disadvantages and shortcomings of four calculation methods presented in other papers were pointed out, and this paper assumed that current was on the inner, upper and lower surfaces of rails uniformly, then analyzed inductance gradient with new method and other four methods respectively, and compared the calculated values of them with the ones obtained from ANSYS and experiments. The results show that, the change trend of calculated values of the new method and other four methods is relatively consistent, and calculated values of the new method are closer to the real ones so that the new method has the advantages of simpleness and accuracy.