Research On Electromagnetic Railgun With Applications

Electromagnetic launch technology (EML) has taken launch science and technology intoa new era. EML has a lot of unique advantages, such as high launch velocity, large massprojection, high efficiency, easy control and so on. Recently, many efforts have been made tothe EML research and its applications, and much progress has been achieved and theapplication of electromagnetic launch has been promoted near practicability.In this paper, techniques about application of EML in weapons are studied and anelectromagnetic rail mortar weapon was put forward, which makes the feasibility of the EMLweapon better. Otherwise, application of EML into mortar weapon significantly enhances thisweapon performance.The research works involved in this thesis are as follows.Firstly, modeling of the simple rail gun and multi-turn rail gun were constructed based onthe deduction of theoretical formulae and the interior ballistic behavior of electromagneticmortar was simulated through a compiled computer routine. Computational results showedthat a 12 steps-energy-store system could meet the need of the electromagnetic mortar.Secondly, the recoil force of the electromagnetic mortar was analyzed by finite elementmethod. To buffer this force a variety of measures were discussed and a recoil mechanism forthe electromagnetic mortar was designed.Thirdly, the scheme of power system for the electromagnetic mortar was designed and toimprove the feasibility, different power assembly is utilized according the development ofpulse power technology.Lastly, a mobile electromagnetic mortar system is proposed. To predict the systemperformance, the three-dimensional model and then the dynamic model of this weapon werecreated. The characteristics of the electromagnetic mortar were simulated by multi-bodydynamics software ADAMS. The simulation results show that the electromagnetic mortarsystem has good stability and its firing accuracy can meet the requirement.