摘要坦克装甲车辆作战性能要求现代武器装备打击力度大、射击精度高，要求火炮增大口径、加长身管，以满足作战威力的要求；车辆轻型化要求武器装备总体结构紧凑、火炮重心前移，以满足炮塔空间的需求；现代武器多功能化要求地面武器兼有防低空机动目标的需求等等，使得坦克装甲武器射角和不平衡力矩增大，这样就出现了中大口径非平衡火炮在全角度范围内实现平衡稳定控制的问题。76091

高平机兼具高低机和平衡机的作用，本文采用高平机产生的平衡力矩来平衡火炮俯仰部分的重力矩。根据火炮的已知条件，计算了某型火炮高平机液压系统参数，选择了电液伺服阀的型号，用AMESim软件搭建了高低向电液伺服系统。提出前馈非线性PID控制实现对行驶状态火炮平稳跟踪，用MATLAB/Simulink搭建了系统控制部分仿真模块，起到对液压系统的控制目的。通过设置联合仿真，建立起AMESim和MATLAB/Simulink联合仿真，仿真分析了某型火炮在平衡稳定、非平衡力矩作用、非平衡力矩+平衡腔作用三种情况静止和行驶两种条件，共六种状态下该型火炮的跟踪效果。仿真结果表明，高平机的平衡腔对不平衡力矩具有较好的平衡作用，能够提高非平衡炮的跟踪精度；设计的控制系统使火炮行驶状态下具有较好的稳定跟踪性能。

毕业论文关键词  火炮平衡稳定  高平机   非线性PID  AMESim/Simulink联合仿真

毕业设计说明书外文摘要

Title   Simulation and Analysis on Equilibrium Stability Control Technology of Medium or Large Calibre Artillery

Abstract

The combat performance of the tank and armored vehicle requires modern weapon equipment to be with strong force of cracking down, high shooting accuracy and for artillery to be with big caliber, extended tube, to meet its requirement of effectiveness。 Light-weight trend of vehicles requires artillery weapon equipment a compact overall structure and a forward center of gravity to respond to the needs of the turret space。 Multi-functionalization of modern weapons requires the ground-based weapons the demand of the defense low-altitude maneuvering target, etc。 All the above requirements make the firing angle and unbalanced moment of tank armored weapon increase, so there is a balance stability control problem in the range of angles for medium or large caliber non-equilibrium artillery。 Elevating-equilibrium mechanism has the function of elevating mechanism and equilibrator, and it was adopted in order to balance the gravitational moment of pitch part in this paper。 According to the known conditions of the artillery, hydraulic system parameters of its elevating-equilibrium were calculated, the model of electro-hydraulic servo valve was selected, then the elevation electro-hydraulic servo system was set by using AMESim software。 Feed forward nonlinear PID control was introduced to realize artillery stabilized tracking when in driving state, the simulation module for system control part was built by MATLAB/Simulink to control the hydraulic system。 By setting the co-simulation, the AMESim and MATLAB/Simulink simulation was established。 The artillery tracking effect in six different situations, which are with balance stable torque, non-equilibrium torque and non-equilibrium torque plus balance cavity by the stop and moving conditions, were simulated and analyzed。 The simulation results showed that the balance cavity of elevating-equilibrium mechanism has a good balance effect to unbalance torque, thus can improve the tracking precision of non-equilibrium artillery。 And the designed control system makes the artillery have good steady tracking performance in driving conditions。

Keywords  Artillery equilibrium and stability; elevating-equilibrium mechanism; nonlinear PID; AMESim/Simulink co-simulation