大后坐质量发射器反后坐装置自适应调压技术

Adaptive adjustment of air pressure for anti-recoil device of launchers with high recoil mass

使用液体气压式复进机的大后坐质量发射器固定初压时,难以适应全部射角工况。为研究适应射角变化的自适应调压技术,结合某大后坐质量轨道发射器俯仰部分模型,分析了后坐部分受力情况,建立了后坐复进运动微分方程,对典型射角工况下后坐复进规律进行了仿真计算,对比分析了定初压和变初压策略下的反后坐效能,设计了一种自适应调压系统,并进行了调压试验研究。仿真和试验结果表明:相比定初压,变初压策略能够获得更高的反后坐效能;采用直接调整储气腔容积、间接实现压力调整的调压方式,对于大后坐质量发射器具有一定的应用可行性。

For the launchers with high recoil mass which use liquid pneumatic recoil machine,fixing the initial pressure of gas is difficult to adapt to all firing angle conditions.In an effort to study the automatic adjustment technology of air pressure adjusting to the change of firing angle,the force on the recoil part combined with the pitching part model of a rail gun with high recoil mass was analyzed,the differential equations of recoil motion was established,the recoil law under typical firing angle conditions was simulated,and the recoil effectiveness under constant initial pressure and variable initial pressure strategies was compared.Then,an adaptive air pressure adjustment system was designed and the pressure adjustment test research was conducted.It is concluded that,compared with the constant initial pressure strategy,the variable initial pressure strategy can achieve higher anti-recoil efficiency,and that it is feasible for the launchers with high recoil mass to adjust the volume of the air chamber directly and realize the pressure adjustment indirectly.This study has a certain reference value for the overall design of the launch system of the launchers with high recoil mass.