Non-Inductive Control Surface Actuator

Dynamic Structures and Materials, LLC (DSM) proposes a novel piezoelectric ceramic motor actuator for actuating flight control surfaces such as canards in mortars and gun launched munitions. The proposed miniature piezoelectric ceramic actuation technology is based on a “inertial” vibration motor concept that has been shown to be able to produce over 15 lbf in linear applications and 2 lbf-in in rotary applications. The motor also provides high resolution control authority of less than 0.001” and nearly instantaneous stroke without the windup or backlash found in traditional geared electromagnetic or hydraulic/pneumatic actuation technologies. DSM has demonstrated that components of the motor technology can withstand gun launch accelerations of up to 100 kG. Development of an electronics driver that requires minimal space and little or no power during hard-over or holding maneuvers is also proposed. A Phase I experimental feasibility test and analysis results will demonstrate the potential for the Phase II system.