Research On Characteristics Of Flexible Linked Electro-hydraulic Position Servo System Based On CMAC Control Strategy

The electro-hydraulic position servo system is the core system of large-inertia heavy-duty industrial drive mechanisms such as aerospace,warships,oil mining,and bridge construction.Characteristics,and in the actual engineering application process,the electro-hydraulic position servo system has serious uncertainties such as elastic deformation,vibration noise,and high nonlinearity,which seriously affects the dynamic and static characteristics and control accuracy of the electro-hydraulic position servo system.Therefore,in this paper,the flexible coupling characteristics of the electro-hydraulic position servo system with flexible connections under low-speed operating conditions are analyzed and studied.A new control strategy suitable for the system is designed to further solve the large inertia.Shock and vibration problems of multi-flexibility coupling electro-hydraulic position servo system under heavy load conditions at low speed and commutation torsion.Firstly,create a classic transfer function model of a multi-flexible coupling electro-hydraulic position servo system.Based on this model,analyze the mechanism model considering the combined effects of inertial load,elastic load,and flexible connection stiffness,and establish consideration of the flexibility and load of the coupling mechanism An accurate mathematical model of the influence of elastic stiffness on low-speed motion characteristics of electro-hydraulic position servo systems with large inertia and heavy loads.Secondly,the flexible coupling characteristics of the multi-flexible coupling electro-hydraulic position servo system under low speed conditions are analyzed and researched,and the optimal value of the stiffness coefficient of the flexible coupling is further analyzed through simulation analysis.Thirdly,a new control strategy based on reliability-distributed fuzzy CMAC algorithm is proposed for multi-flexibility coupling electro-hydraulic position servo system under the influence of vibration noise and non-linear factors at low speed.The feasibility of this control strategy is verified through a comparative study with PID control strategy simulation.Finally,a semi-physical simulation experiment platform based on the joint simulation of Amesim and Matlab / Simulink is built.The comparative analysis of the joint simulation simulation experiments is performed to verify the validity of the flexible equivalent design modeling concept of the multi-flexible coupling electro-hydraulic position servo system and the effectiveness of the new control strategy.Sex and correctness.