Research On The Control Of The Cutting Part Of A Cantilever Tunneling Machine Based On Particle Swarm Optimization Algorithm

As an important underground mining equipment in coal mines,cantilever tunneling machines have continuously improved their performance requirements with the development of industrialization.The cutting part,as a key component of the cantilever tunneling machine,its performance determines the excavation efficiency and service life of the tunneling machine.Therefore,the research on the control system of the cutting section has important practical significance for the development of the tunneling machine industry.Taking the cutting part of the EBZ200 cantilever tunneling machine as the research object,the traditional hydraulic control system of the cutting part of the tunneling machine is first improved and designed,introducing load sensitive technology and electro-hydraulic proportional technology.Based on the geometric and dynamic relationships of the cutting section,determine the selection of the main hydraulic components of the cutting section.Based on the principle of electrohydraulic valve control hydraulic pressure,a nonlinear mathematical model of the cutting part is established,and a simulation model of the cutting part control system of the tunneling machine is established in the Simulink environment.Optimize the PID controller using Particle Swarm Optimization(PSO)algorithm and establish a simulation model of the PSO-PID control cutting unit control system in the MATLAB/Simulink environment.By comparing the simulation analysis of PID control model,in the Step response,the overshoot of PSO-PID to the control system is reduced by 1.6%,and the response time to reach the steady state is shortened by 0.3 s.This indicates that the PSO algorithm optimized PID control is applied to the cutting part control system to achieve better control effect.Analyze the composition and working principle of the hydraulic control system of the excavation machine cutting section,model the main hydraulic components using AMESim,establish the AMESim model of the hydraulic control system of the excavation machine cutting section,and simulate and analyze the cantilever rotation and lifting actions,verifying the feasibility of the hydraulic simulation model.Finally,a control system model of the cutting part is established in MATLAB,and a physical model of the cutting part is established in AMESim.Combining the two,an electromechanical and hydraulic integrated simulation model of the cutting part of the tunneling machine is established based on MATLAB and AMESim.Simultaneously introducing PSO-PID control and PID control strategies.Comparing and analyzing the two modes through simulation,the results show that the joint simulation control model using PSO-PID control has better performance.The paper applies the PSO intelligent algorithm to optimize the control system of the cutting section of the tunneling machine,providing reference value for the research on intelligent control of the tunneling machine,and has a certain reference value for the research on intelligent control of similar mechanical equipment of the tunneling machine.Figure [50] Table [11] Reference [80]...