基于Rocky/Ansys Workbench的发射药自动称量包装过程仿真

Simulation of Propellant Automatic Weighing and Packing Process Based on Rocky/Ansys Workbench

为提高发射药称量精度和生产效率,针对26、16和5 mm 3种不同直径的发射药,采用三级加料方式结合Rocky离散元软件对连续加料称量过程进行动态仿真,确定称量料斗放料板的工作载荷。基于Ansys Workbench有限元软件对称量料斗的受力变形进行仿真分析,判断是否漏料且获得卸料时间。动态仿真结果表明:称量装置结构设计满足承载80 kg装药量使用要求,不会发生漏料;实现了称量过程的可视化,能较准确地反映实际称量包装工况,对称量包装过程的精确控制具有指导意义。

In order to improve the propellant weighing precision and production efficiency,the continuous weighing processes of 26,16 and 5 mm diameters propellant were dynamically simulated by 3-stage charging mode and Rocky discrete element software,the work load of the discharge plate of the weighing hopper is determined.Based on the Ansys Workbench finite element software,the stress and deformation of the weighing hopper are simulated to determine whether the material is leaking or not,and the unloading time is obtained.The results of dynamic simulation show that the structure design of weighing device can meet the requirement of loading 80 kg,no material leakage will occur,and the visualization of weighing process can be realized,which can accurately reflect the actual weighing and packing conditions.It is the instructive experience for the accurate control of the weighting and packing process.