Multi-dimensional Taylor Network Optimal Control For Tank Firing In High Speed On Irregular Road And The Simulation Of External Trajectory

Tanks will vibrate with the terrain when running on the battlefield.This vibration and the inherent firing delay of tank gun system will lead to the deviation of the tank gun barrel both in elevation angle and pitch angle.To solve this problem,modern tanks usually equipped with a stabilizer,which named tank gun control system,to adjust the shooting angle quickly and precisely.Even so,we still can't guarantee a one hundred percent hit rates of the tank gun.That's because the random factors from the air and the tank itself can lead to the projectile dispersion,which will seriously reduce the hit rate.In view of the above description,this thesis is divided into two parts,that is,the research of tank gun control system and the external trajectory of tank gun projectile.In the first part,we proposed a method of the design of the tank gun stability control system,which is based on the multi-dimensional Taylor network optimal control(MTN Optimal Control).This part includes the establishment of the tank virtual prototype?tank gun control system design?parameter tuning and simulation etc..With the help of Adams's(Automatic Analysis of Mechanical System)powerful multi-body dynamics simulation and analysis capabilities,we will build a tank virtual prototype,which contains strong nonlinear and coupling,as the controlled object.The design of MTN optimal control system is carried out in the Matlab,which will be called as a c-dynamic link library by Adams.Because of there are too many parameters of the MTN controller.We will use a so-called "simplex" parameter optimization method to optimize the controller parameters.Finally,the simulation analysis is carried out in the Adams.The simulation results show that the MTN optimal control has faster response speed and smaller steady-state error than the PID optimal control.Under the premise that the tank gun barrel can be stabilized,the tank can reach a higher speed under the MTN optimal control than that under the PID optimal control.In the second part,we will firstly establish the mathematical model of the spin stabilized projectile respectively on the vacuum condition and air condition,so we can compare the differences between the two.On the basis of this,a mathematical model of six degrees of freedom for a projectile with angular motion is established,which will be used to analyze the influence of the angular motion on the motion of the center of mass.Finally,the stability of the spin stabilized projectile and the influence of various random factors on the projectile dispersion and hitting accuracy are studied.The last part of this thesis is the summary of the work we have done and the prospects for future work.