| The recoil resistance control technology of the artillery is a key technology to coordinate the contradiction between the power of the artillery and the maneuverability,and to develop the high-power and high-mobility artillery in the future and improve the overall performance of the artillery system.With the continuous development of modern artillery intelligent,lightweight and multi-functional,as well as the gradual maturity of new principles of artillery,new requirements for recoil resistance have been generated,which has prompted new developments in recoil resistance control technology.The electromagnetic recoil resistance control system is an electromagnetic brake system designed based on the principle of electromagnetic induction.Compared with the traditional hydraulic brake system,the electromagnetic damping has no contact between the primary and secondary during the damping process,and the material wear is less.The system has long service life,simple structure,convenient control and high reliability.It is widely used in vehicles,aerospace and other fields.This paper focuses on the key technologies of the electromagnetic recoil resistance control system.The main work contents are as follows:1)From the perspective of intelligent and electrified development of the artillery system,propose and design the overall scheme of the electromagnetic recoil resistance control system;2)Based on the equivalent magnetic circuit method and the principle of virtual work,the analytical formula of the electromagnetic resistance of the electromagnetic recoil resistance control system is derived,the dynamic model of the system is established according to the recoil motion law of the artillery,and the electromagnetic field model of the device is analyzed in conjunction with the finite element method,Study and analyze the electromagnetic resistance characteristics and dynamic characteristics of the system;3)Based on the electromagnetic model and the dynamic model of the recoil motion of the artillery,the theoretical calculation model of the induced electromotive force of the electromagnetic recoil resistance control system is established,and the operational characteristics of the main performance of the linear generator for the artillery,such as induced electromotive force and electric energy post-processing,are specifically analyzed;4)According to the operating characteristics and structural characteristics of the electromagnetic recoil resistance control system,combined with the thermodynamics related equations,the heat source during the operation of the device is analyzed and calculated,and the windings etc.are determined by the cylinder heat conduction model and the layer superposition model,respectively.The effective thermal conductivity and the thermal conductivity of the iron core establish the temperature rise calculation model of the electromagnetic recoil resistance control system,determine the temperature rise of each part of the system,and propose measures to reduce the temperature rise;5)Based on the finite element method,the electromagnetic field of the electromagnetic recoil resistance control system is analyzed,combined with the Maxwell tensor method to calculate the radial electromagnetic force during the operation of the device,and the finite element software is used to perform modal analysis on the system.Conduct electromagnetic vibration response analysis. |
