Design and Development of Digital Loading System for Aviation Electric Machinery
In order to improve the control performance and stability of the aero-electric mechanism and reduce the failure rate,the digital loading process and performance index checking are studied.The torque is set in the upper computer,and the command is sent to Siemens 1200 PLC through TCP protocol.The PLC outputs the analog signal to the NPN conversion module,and the converted torque signal drives the servo electric cylinder for dynamic loading.The indexes of the motor mechanism are measured by various sensors in real-time,and the fuzzy PID algorithm is used to form a closed-loop control.The results show that the loading system can control the loading direction,force,displacement,current and speed,and greatly improve the loading accuracy and automation degree of the electric mech-anism.
electric mechanismdigital loadingdynamic loadingfuzzy PID
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