| 摘要 |
PURPOSE:To reduce the frictional force acting on weights to simplify the mechanism by mutually opposing two or more plates having weights at the lower parts thereof, and mounting these plates on a support frame by wire hinges, in the titled dynamic vibration absorber suppressing a horizontal vibration of a tower- shaped structure. CONSTITUTION:Two or more weight suspending plates 2 and 2' having an elongated shape in the upward and downward direction are suspended down from the support frame 1 swingable on the perpendicular face in the vibrating direction to be controlled by means of wire hinges 3 and 3'. Weights 4 and 4' are mounted on the lower parts of the weight suspending plates 2 and 2'. A damper 9 of a viscous elastic member or a viscous member is mounted on the upper parts of the plates 2 and 2'. This damper 9 is fitted by a bolt 12 between damper fitting plates 11 and 11' axially supported in a rotatable manner by pins 10 and 10'. |
