INVESTIGATION OF ROTARY ACTUATION TECHNIQUE.

This program is intended to provide the technology necessary for the integration of hydraulicmechanical interfaces so that rotary actuators may be utilized for fast response, long endurance applications, such as vehicle flight control surface actuation. This is an exploratory program for the investigation of a unique rotary hydromechanical actuator. Experimental and analytical studies have been conducted in parallel to achieve the objectives of the program. Early development tests have been performed on critical components to obtain confirmation of the parameters established for the design of the experimental model actuator. Primary areas of investigation include gear strength and wear characteristics, and motor performance factors.