引信后坐质量-弹簧系统动态特性与设计  

Dynamic Characteristics and Design of Fuze Setback Mass-Spring System

作　　者：居荣誉 王雨时[1] 闻泉[1] JU Rongyu;WANG Yushi;WEN Quan(School of Mechanical Engineering, Nanjing University of Science and Technology, Nanjing 210094, China)

机构地区：[1]南京理工大学机械工程学院,南京210094

出　　处：《兵器装备工程学报》2020年第9期68-74,共7页Journal of Ordnance Equipment Engineering

摘　　要：为了探究引信后坐质量-弹簧系统各设计参数对其保险和解除保险性能的影响,将发射和跌落冲击曲线简化成余弦曲线,采用拉普拉斯变换求解引信后坐质量-弹簧系统的运动微分方程,通过算例计算并与ADAMS软件仿真结果进行对比,计算了两个算例中发射与跌落位移响应峰值的比值。对比结果表明:拉普拉斯变换法求解引信后坐质量-弹簧系统的运动微分方程计算精度较高;从工程设计角度来说,适当减小后坐质量m1,增大弹簧装配预压量λ、弹簧刚度系数k以及将保险球导向孔轴线与引信轴线夹角α取为45°都有助于解决引信后坐质量-弹簧系统保险与解除保险之间的矛盾。In order to explore the influence of design parameters of fuze setback mass-spring system on its insurance and arming,we simplify the launch and drop impact acceleration curves to cosine curves,the laplace transform method was used to solve the differential equation of motion of the system.The ratio of the peak values of displacement response of launch and fall in the two examples was calculated.The results show that the Laplace transform method is suitable for solving the differential equation of motion of the fuze setback mass-spring system with high accuracy.From the engineering design point of view,properly reducing the seatback mass m1,properly increasing the preloadλof the assembly of the spring and the stiffness coefficient k of the spring and the angleαbetween the guide hole axis of the safety ball and the fuze axis at 45 degrees are all helpful to solve the contradiction between spring system insurance and arming.

关 键 词：引信 后坐保险机构 后坐针刺发火机构 动态特性 解除保险 余弦简化法 

分 类 号：TJ43[兵器科学与技术—火炮、自动武器与弹药工程]