Vibration control device of the truss structure

摘要

PURPOSE:To obtain a vibration controller having a simple structure by installing an extension/contraction driving mechanism which is expandable in the row direction into the intermediate part of each supporting pillar member in the row direction of a three-dimensional truss and extending/contracting the extension/contraction driving mechanism in accordance with the vibration generated on the truss structural body. CONSTITUTION:In the intermediate part of each supporting pillar member 10a in the row direction of at least one three-dimensional truss 10 of a truss structural body 11 which is formed by connecting a plurality of three-dimensional trusses 10 in series, each extension driving mechanism 12 is installed in expandable ways in the row direction. The vibration generated on the truss structural body 11 is detected by a shift position sensor 16, and an actuator 17 is driven through a control part 22 in correspondence with the vibration, and the expandable driving mechanism 12 is operated by the actuator 17, and the supporting pillar 10 of the three-dimensional truss 10 is extended and contracted in the row direction. Therefore, the vibration of the truss structural body 11 can be easily controlled by a device having the simple structure.