Abstract
Aging of large steel structures, such as giant bridges, tanks, and power generation facilities, has become a major problem. In this study, a new magnetic actuator that can move freely on a planar magnetic material is proposed. Using the phase difference between the vibrations of five vibration components, the movement velocity and angle of the actuator can be controlled in the horizontal and vertical planes. The motion of the actuator was analyzed by applying the energy method, and the results were compared with measured values. The measured and calculated values were in relatively good agreement. By measuring the relationship between the input current to the electromagnet and the amplitude of the vibration components at several points, the design index for the magnetic actuator can be predicted by the calculations.
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