Abstract
This chapter examines the effectiveness of a hybrid platform for mitigating the vibration of a batch of high tech equipment installed in a building subject to nearby traffic-induced ground motion. A three-storey building model and a hybrid platform model are designed and manufactured for examination. The hybrid platform is mounted on the building floor through passive mounts and controlled actively by an electromagnetic actuator of velocity feedback control. For the case of the building without the platform, high tech equipment is supposed to be installed on the second floor of the building. Thus, the measured velocity response of the second floor of the building without platform provides a basis for the evaluation of the effectiveness of the platform by comparing it with the velocity response of the platform. The measured absolute velocity response of the passive platform is then divided by the absolute velocity response of the second floor of the building without platform to obtain the normalized velocity response of the passive platform.
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