This Is The Synovium In Iterative Learning Control And Its Research And Application In The Loading System

The current condition of laboratory, the electrohy draulic servo loadingsystem are used to reproduct aircraft flying in the air when the rudder by loadtorque and test various performance in the actual conditions.It is used to test andexamination of steering gear system in the actual load conditions, the dynamicperformance of the control precision, system reliability. Along with thedevelopment of national defense industry, more and more this kind of servosystem will be need, its technical indicators have also put forward higherrequirements.Electro-hydraulic servo loading system is a typical position disturbancetype of electric hydraulic servo system. In the electro-hydraulic servo loadingsystem, loading system caused by movement of the extraneous torque willseriously affect the system load, also can make the system bandwidth narrow,and have bad stability. So how to overcome disturbance torque load simulator isthe difficulty problem, which is designed to improve the performance of thesystem, the key problem of electro-hydraulic servo loading system. Due to theapplication of iterative learning control system exist some uncertainties,thepractical application of the iterative learning control robustness problems aredifficult to solve, and sliding mode variable structure control can solve therobustness problem. Based on this, the design would be the two control methodcombined with the new method, can effectively improve the performance of thesystem.Based on the extensive reference materials, this article established theelectro-hydraulic servo loading system mathematical model; analysised of thestability of the system, and discussed the electro-hydraulic servo loading systemin nonlinear and time-varying parameters. In addition, deduced the iterativeconvergence condition, in the AMESim software, with the Matlab/Simulinkinterface, builted the electro-hydraulic servo loading system simulation model.In the Matlab environment to build the iterative learning of fuzzy sliding modecontroller simulation model and simulation; Using these two software hascarried on the system simulation,in the electro-hydraulic servo loading test bench simulation result is verified.