摘要
大口径火炮在使用中由于射程不同,所需的装药量发生改变,其后坐位移也将随之改变,影响火炮的快速射击与准确打击。通过在制退机上外并一个旁路,旁路上装有液压阀等装置,当火炮装药量发生变化时,通过调节阀门的开口大小来调节后坐阻力,可有效控制后坐位移基本趋于稳定。建立制退机三维模型,分别对改进前后的制退机进行三维流场模拟分析,对比分析改进效果,对提高火炮的射击效率具有较大的实际意义。
Because of different range of large caliber artillery,its required charge is changed,so its seat shift changes,thus affecting its rapid firing and accurate attack. Through the by pass of the back machine,which is equipped with hydraulic valve,when the gun charge changes,its opening size can be adjusted to control the recoil resistance,thus effectively making the recoil displacement stable. The three-dimensional model of the recoil machine is set up,and the three-dimensional flow field simulation analysis is carried out before and after its improvement,the improvement effect is compared and analyzed. It is of great practical significance for improvement of the firing efficiency of the gun.
作者
肖本勇
郑建国
XIAO Benyong;ZHENG Jianguo(School of Mechanical Engineering,Nanjing University of Science ＆ Technology,Nanjing 210094,China)
出处
《机械制造与自动化》
2018年第3期212-215,共4页
Machine Building & Automation
关键词
火炮
后坐位移
制退机
变阻力
流场
artillery
recoil displacement
recoil machine
variable resistance
flow field
