某转膛式武器闭气环的结构及动力特性分析

Analysis of Structure and Dynamic Characteristic of a Revolver Weapon's Obturator Ring

为了解决转膛式武器所存在的闭气问题,通过三维建模软件建立闭气活塞、闭气环、身管及弹仓三维模型。根据内弹道公式计算试验样机测得的相关数据,计算所得的膛压作为闭气活塞压力载荷。利用有限元分析软件ANSYS Workbench分析在不同非线性材料闭气环条件下的闭气活塞运动特性和闭气面上的闭气压力特性。根据分析闭气活塞的刚柔耦合模型所得到的结果,选择闭气环的材料,为转膛式武器的闭气环设计提供依据。

For the purposes of solving the problems of obturation in revolver weapon, 3D modelings of gas piston, obturator ring, barrel and magazine were established through the 3D modeling software. According to the relevant statistics from the experiment prototype obtained by calcultating with the in- ternal ballistic trajectory calculation formula, the obtained gun pressure is used as the pressure load of gas piston. Then an analysis was conducted of the characteristics of the gas piston motion and the obtu- rating pressure on the obturated surface under the different non-linear material obturator ring conditions by using finite element analysis software ANSYS Workbench. According to results of the analysis of the gas piston rigid flexible coupling model, the obturator ring＇ s material was to be chosen, which pro- vides the basis for the design of the revolving weapon＇ s obturator ring.