محاسبه گراديان اندوكتانس در تفنگ ريلي

Inductance Gradient Calculation In Railgun

Electromagnetic launchers have very important advantages over powder guns, and then increasing the efficiency of these launchers is one of the important goal of researchers around the world. One of the most important factor to increase efficiency is enlargement "inductance gradient" or Lʹ . This paper presents two methods for calculation V in cylindrical rails construction. The results of two methods is compared and showed they are almost identical. The second method used for square rails construction and the results is compare with reported result by famous scientist. Finally inductance gradient V for railgun with auxiliary rails calculate by second method. The methods proposed in this paper have advantages over to numerical method because compact formulas obtained for Lʹ . By these formulas we can study the effects of different dimensions on V values. A table of V for different dimensions of railgun is presented in this paper.