変位増幅機構を用いた戸建住宅用制振装置の研究開発 : 予張力型ダンパーの動的加力実験と交通振動実験(機械力学,計測,自動制御)

概要

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In this study, the new type of damper which has the displacement amplification mechanism has been developed ("Pre-Tension-Type-Damper"). This paper describes the results obtained from dynamic loading test and traffic-induced vibration test using the building model (size: 1.4m×0.9m×2.35m, mass: 764kg) which was designed to have the same first natural frequency as the detached houses. Dynamic loading test showed that the restoring force of damper was proportional to the second power of amplification factor by the amplification mechanism, and it can be simulated by the fractional derivative 3-element model over the following range; frequency: 0.01 to 5Hz, internal temperature of viscoelastic material: 10 to 40℃, strain: 0 to 300%. Traffic-induced vibration test showed that the damper reduced the response ratio of structure's acceleration into about 3/4 in the maximum compared with the response ratio of structure without damper, and it reduced the response ratio of relative displacement into about 1/5 in the maximum.
社団法人日本機械学会の論文
2009-06-25