Research On Servo Hydraulic Control System For A Vehicle-mounted Artillery

Vehicle-mounted artillery is an innovative weapon system,which integrates tractor,automatic ammunition loading system,fire control system and information system.It has the advantages of strong firepower,high mobility,quick response and high level of automation.In application,this artillery has been widely used for national defense and military.With the continuous improvement of the military level,the performance requirements of artillery in the battlefields are becoming higher and higher.These requirements include high accuracy,long range,automation,other performance,energy-saving characteristics,robustness and economy of the system.Based on the existing artillery control system,this study innovatively applied the advanced composite sensing technology of construction machinery to the artillery control system,and designed a new servo control system with quick and accurate respond.In order to verify the rapidity,accuracy and stability of the new scheme,this research focused artillery servo system.Firstly,according to the function and principle of each part of the artillery,a hydraulic system of the artillery based on composite sensing technology is designed by analyzing the action and requirement of each part.Secondly,the steering engine control system in the artillery servo system is studied.The mathematical model of the main hydraulic components in the traversing engine control system is established.At the same time,the PID controller and the fuzzy PID controller are designed.The simulation analysis of the steering machine control system ensures that the performance of the system in terms of stability,rapidity and accuracy meets the design requirements.Thirdly,the control system of high and low machine in the artillery servo system is studied.The mathematical model of valve-controlled three-chamber hydraulic cylinder in the control system of elevating equilibrator is established,a PID controller and a BP neural network PID controller based on S function are designed.By the simulation is compared and analyzed,the design requirements of the system for rapidity,stability and accuracy are satisfied.Finally,the simulation performance of the servo hydraulic control system is compared with that of other similar types of vehicles.The comparison results show that the simulation performance of the servo hydraulic control system based on composite sensing technology is similar to or slightly better than that of other similar types of servo control systems.Meanwhile,the feasibility of the scheme is further demonstrated by experimental verification.