@article{Hiroyuki Yaguchi_2020, title={A NEW TYPE OF ELECTROMAGNETICALLY PROPELLED VIBRATION ACTUATOR FOR APPEARANCE INSPECTION OF IRON STRUCTURE}, volume={20}, url={https://geomatejournal.com/geomate/article/view/3113}, abstractNote={<p>Due to economic development, many social infrastructures such as various large structures are<br>being constructed around the world. Inspection and maintenance of social infrastructure such as huge bridges<br>and tanks is one of the most important items in the world. In the present study, a new vibration actuator that<br>extends the principle of operation invented by the authors was proposed and tested. New principle of<br>operation for the actuator capable of reciprocating movement by controlling the phase of two vibration<br>components has been considered. The principle of operation for the actuator was established by a very simple<br>analysis. The experimental results indicate that reciprocating motion can be realized by controlling the phase<br>of the vibration of the two vibration components. Experimental results reveal that this vibration actuator is<br>able to pull a load mass of 190 g and the maximum efficiency of the actuator was about 12.5 % for the case<br>with own-weight. The actuator was confirmed to be able to easily control the direction of movement with<br>two-channel function generator and power amplifier.<br><br></p>}, number={77}, journal={GEOMATE Journal}, author={Hiroyuki Yaguchi}, year={2020}, month={Dec.}, pages={69–76} }