受動・準能動の双方に適応可能な電磁抵抗型制振装置(機械力学,計測,自動制御)

概要

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The authors have developed a vibration control device (VCD) using an electromagnetic damping. The device has an inertial force generated by a flywheel, and a damping force derived from an energy dissipation of a power generator. The small scale experimental model was manufactured, and the vibration tests were carried out. In this paper, for the purpose of applying the device to a large structure, new two VCDs of 30kN load range are developed, and shipped to NCREE in Taiwan. In order to investigate the dynamic properties of the VCD, performance tests are carried out, and the resisting force characteristics are measured. And vibration tests of 3-story structure with the VCDs are carried out by using a shaking table. The 3-story structure has 9m height, 3m width, and 18 tons weight. Seismic responses at each story are measured in cases of passive or semiactive type. The VCDs are controlled by Bang-Bang control which is based on minimizing the time derivative of the Lyapunov function. The effects of vibration suppression using the VCD are confirmed experimentally.
2009-10-25