To realize the contour control of the full flexible nozzle in the new 0.6m × 0.6m transonic and supersonic wind tunnel of CARDC, compare with Hydraulic Mode, Hydraulic+Motor Mode, Motor Mode and solve the multi-axis synchronous control problem. Adopt electric cylinders and electric putters as the actuators of the control system. Address Virtual Axis synchronization strategy and optimize the relevant control parameters based on SIMENS SIMOTION D, design the hardware composing and software function according to its structure and technical requirements. Test results of the multi-axis synchronous control experiment were analyzed, which validate that the nozzle control system has high accuracy and good stability in synchronous control. The developed system and proposed algorithm can meet the engineering application request and achieve good effect in addition.
