| 摘要 |
PROBLEM TO BE SOLVED: To provide a tuned mass damper for a multi-layer structure capable of having a damping effect on the plurality of natural frequencies of a building. SOLUTION: Three masses are vertically installed as in a three-stored building where the number of layers of a three mass system vibration model is three. The masses 3, 4, and 5 are connected to the lowest part of the damper through three recovering elements 6, 7, and 8. The masses m1, m2, and m3 of the masses and the spring constants k1, k2, and k3 of the recovering elements are determined to fulfill the requirements of expressions 1 to 3.Expression 1 is M1:M2:Mn = m2:m2:mn, Expression 2 is K1:K2:Kn = k1:k2:kn and Expression 3 is (K1/M1) = (k1/m1), (K2/M2) = (k2/m2), (K3/M3) = (k3/m3). COPYRIGHT: (C)2006,JPO&NCIPI
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