Dynamic Testing of Electromechanical Actuators Using Time-History Data
Conference paper (preprint)
DAYTON UNIV RESEARCH INST (URDI) OH
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A commercial electromechanical actuator EMA is to be dynamically tested with predetermined stroke and load profiles for transient thermal and electric power behavior to validate a numerical model used for aerospace applications. The EMA will follow the stroke profile representative of a real aircraft mission duty cycle. A hydraulic press will exert a corresponding load profile onto the EMA. Specialized hydraulic load control methods must be employed to meet the accuracy requirements. Two of these methods are closed-loop linearization CLL and displacement induced disturbance cancellation DIDC. These methods are implemented along with an external PID compensator, and run in real-time in a series of system identification experiments to observe controller performance.