A new hydraulic actuator-hydraulic muscle （HM） is described, and the actuator＇s features and applications are analyzed, then a position servocontrol system in which HM is main actuator is set up. The mathematical m...A new hydraulic actuator-hydraulic muscle （HM） is described, and the actuator＇s features and applications are analyzed, then a position servocontrol system in which HM is main actuator is set up. The mathematical model of the system is built up and several control strategies are discussed. Based on the mathematical model, simulation research and experimental investigation with subsection PID control, neural network self-adaptive PID control and single neuron self-adaptive PID control adopted respectively are carried out, and the results indicate that compared with PID control, neural network self-adaptive PID control and single neuron self-adaptive PID control don＇t need controlled system＇s accurate model and have fast response, high control accuracy and strong robustness, they are very suitable for HM position servo control system.展开更多
To cope with the shortcomings of aircraft course (attitude) analogue servosystems: complicate structure, difficulty of matching in a complete set, less reliability,high cost and their accuracy hard to raise, a system ...To cope with the shortcomings of aircraft course (attitude) analogue servosystems: complicate structure, difficulty of matching in a complete set, less reliability,high cost and their accuracy hard to raise, a system mode 'computer plus detector unit'is put forward. The advantage of this project is that the software takes the place of thehardware servo mechanism in a complete set and accomplishes the servo and filteringfunctions. Additionally, it can be used to correct all sorts of errors exactly.展开更多
文摘A new hydraulic actuator-hydraulic muscle （HM） is described, and the actuator＇s features and applications are analyzed, then a position servocontrol system in which HM is main actuator is set up. The mathematical model of the system is built up and several control strategies are discussed. Based on the mathematical model, simulation research and experimental investigation with subsection PID control, neural network self-adaptive PID control and single neuron self-adaptive PID control adopted respectively are carried out, and the results indicate that compared with PID control, neural network self-adaptive PID control and single neuron self-adaptive PID control don＇t need controlled system＇s accurate model and have fast response, high control accuracy and strong robustness, they are very suitable for HM position servo control system.
文摘To cope with the shortcomings of aircraft course (attitude) analogue servosystems: complicate structure, difficulty of matching in a complete set, less reliability,high cost and their accuracy hard to raise, a system mode 'computer plus detector unit'is put forward. The advantage of this project is that the software takes the place of thehardware servo mechanism in a complete set and accomplishes the servo and filteringfunctions. Additionally, it can be used to correct all sorts of errors exactly.
