日本AEM学会誌
Online ISSN : 2187-9257
Print ISSN : 0919-4452
ISSN-L : 0919-4452
[学術論文]
加速度信号を用いた浮上体の状態切替による構造物の振動制御
田中 創上野 哲趙 成岩
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ジャーナル フリー

2024 年 32 巻 2 号 p. 258-263

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 This research expresses a novel active vibration control method for structures by using magnetic levitation (MAGLEV) technologies. When a vibration occurs, an iterative MAGLEV device is developed to levitate and contact the celling of structures properly. The device is in contact when the product of ceiling displacement and velocity is positive, and non-contact when it is negative. To make the device float stably, a sliding mode control method is used. A vibration control target simulating a two-story house is subjected to standing wave excitation and random excitation. The standing wave excitation adds vibrations near the first- and second-order natural frequencies. Similarly, random excitation adds a random excitation that emphasizes each of the first- and second-order eigenfrequencies. The amplitudes of the displacements of each ceiling are derived by Fourier transform and compared. The experimental result shows the effect of this device on the vibration control of the structure.

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