This paper presents the design and testing of a magnetostrictive-hydraulic hybrid actuator driven by Terfenol-D. The actuator is based on the frequency rectification of small displacements from a Terfenol-D rod by using one-directional check valves. The continuous fluid flow produced from this actuation is then used to drive a hydraulic output cylinder. A transducer was built in order to actuate the Terfenol-D rod in the pump . In addition, an active valve system was designed and built to achieve bi-directional capabilities in the actuator. Successful testing of the actuator in unidirectional and bi-directional modes was carried out. The actuator was found to have an unloaded velocity of 6 in/sec, a blocked force of 10 lbs, and a bi-directional stroke of 0.1 in/cycle at 10 Hz.
scite is a Brooklyn-based organization that helps researchers better discover and understand research articles through Smart Citations–citations that display the context of the citation and describe whether the article provides supporting or contrasting evidence. scite is used by students and researchers from around the world and is funded in part by the National Science Foundation and the National Institute on Drug Abuse of the National Institutes of Health.