2018 年 5 巻 5 号 p. 18-00080
Levitation improvement of the bending levitation performance of thin steel plate was performed. First, the point of the steel plate where the vibration is predominantly generated was estimated using an ultrathin steel plate with a thickness of 0.18 mm. Furthermore, to decrease the vibration, levitation experiments by means of changing the bending shape and using permanent magnets were performed and the standard deviation of the displacement and levitation probability were evaluated. In addition, to determine the effect of the permanent magnets, the shape of the steel plate was analyzed using the finite difference method. As a result, the main vibration generating area was confirmed to be the longitudinal central edge area of the steel plate. In order to suppress the vibration in this area, the vibration of the steel plate was decreased by making an asymmetrical bending shape. Also, the vibration of the steel plate was suppressed by placing the permanent magnets in the positions that matched with the results of the analysis.
