Modeling And Simulation Of Servo System Of Energetic Material 3D Printing Molding Platform

With the increasing demand of energetic materials for the accuracy and reliability of detonation,detonation transmission,the traditional molding process can no longer meet the development of energetic materials.The 3D printing technology has the advantages of good flexibility and strong adaptability,which makes it completely get rid of the restrictions and constraints on the product form in the traditional manufacturing process,and opens up a new way for the development of energetic materials.This paper designs and optimizes its forming platform for a self-made desktop-level energetic material 3D printer,and takes the servo system of the forming platform as the research object,and conducts mathematical modeling and kinematics simulation of its dynamic performance.The specific content is:Firstly,this paper optimizes the design of the energetic material 3D printing system forming platform : the XY level movement of the forming platform is realized by building a cross-shaped ball screw transmission device,and the closed-loop stepper motor is used to drive and combined with the position feedback element grating ruler to realize the system Closed-loop control.Perform modal analysis on the linear module of the ball screw,and simulate to verify whether the linear module of the selected model will resonate during operation.Secondly,this paper carries on mathematical modeling to the servo system of the forming platform : based on the control principle and mechanical system dynamics theory,the mathematical model of the servo system of the forming platform is obtained and the parameters are adjusted.Simulink is used for system simulation to initially verify the accuracy of the mathematical model,and lays the foundation for the following co-simulation and model tracking control.Next,this paper conducts mechatronics co-simulation on the servo system of the forming platform : using the ADAMS/Controls module,the automatic analysis tool of the mechanical system ADAMS and the control system modeling and analysis software MATLAB/Simulink are effectively combined to establish a co-simulation platform of forming platform servo system and verifies the results,and further analyzes the influence of different parameters on the dynamic performance of the system.At last,carry out physical construction and experiments on the optimized forming platform,take the position accuracy as the optimization goal,record the experimental data,perform mathematical processing and analysis,obtain the system positioning accuracy and repeat positioning accuracy,and verify whether it is within the allowable error range,and to verify the feasibility and effectiveness of the optimization scheme of the forming platform proposed in this paper.