Fatigue testing machine using transverse flux linear motor

摘要

PURPOSE: A fatigue testing device capable of compensating the weight of an actuator is provided to constitute a device of high speed and high precision by applying a transverse flux linear motor capable of controlling thrust in various ways as an actuator. CONSTITUTION: A fatigue testing device capable of compensating the weight of an actuator comprises a body and a jig. An actuator for adding loads on a specimen is installed on the body. The actuator comprises an actuator rod(110), a frame(120), a transverse flux linear motor(130), a thrust compensating device(170), and a controller. The actuator rod connected to the jig is vertically operated by the transverse flux linear motor and transmits the thrust generated by the transverse flux linear motor to the testing piece, thereby applying tensile and compression loads. Front and rear locations of the frame with respect to a progressive direction of the actuator rod are fixed in the inside of the body. The transverse flux linear motor is arranged in between the actuator rod and frame, thereby moving back and forth the actuator rod back and forth from the frame. The thrust compensating device provides loads for compensating the load of the actuator rod, thereby compensating the load transferred to the specimen as much as the load of the weight of the actuator rod.