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標題: Experimental verification of seismic vibration control using a semi-active friction tuned mass damper
作者: Lin, Ging-Long
Lin, Chi-Chang
Lu, Lyan-Ywan
Ho, Yu-Bo
關鍵字: experimental study;seismic control;semi-active control;shaking table test;tuned mass damper (TMD);variable friction
Project: EARTHQUAKE ENGINEERING & STRUCTURAL DYNAMICS, Volume 41, page(s) 813–830.
A tuned mass damper (TMD) system consists of an added mass with properly functioning spring and damping
elements for providing frequency-dependent damping in a primary structure. The advantage of a friction-type
TMD, that is, a nonlinear TMD, is its energy dissipation via a frictionmechanism. In contrast, the disadvantages
of a passive friction TMD (PF-TMD) are its fixed and predetermined slip load and loss of tuning and energy
dissipation capabilities when it is in a stick state. A semi-active friction TMD (SAF-TMD) is used to overcome
these disadvantages. The SAF-TMD can adjust its slip force in response to structure motion. To verify its
feasibility, a prototype SAF-TMD was fabricated and tested dynamically using a shaking table test. A nonsticking
friction control law was used to keep the SAF-TMD activated and in a slip state in earthquakes at varying
intensities. The shaking table test results demonstrated that: (i) the experimental results are consistent with the
theoretical results; (ii) the SAF-TMD is more effective than the PF-TMD given a similar peak TMD stroke; and
(iii) the SAF-TMD can also prevent a residual TMD stroke in a PF-TMD system.
DOI: 10.1002/eqe.1162
Appears in Collections:土木工程學系所

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