Design and model-building of motor-driven load simulator with large torque outputs

Load simulator is an important equipment in hardware-in-loop simulation, which can simulate aerodynamic loads acting on aircraft rudder. A kind of motor driven load simulator (DMDLS) that uses DC torque motor and linear driver was designed, and flexibility pole was used to change connection stiffness of it, so measure noise and remain torque was depressed. DMDLS with large torque outputs, high static load precision and rapid response was built. The mathematical model of DMDLS was derived, which was validated by compared with results of real test.