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Indexed by:期刊论文

Date of Publication:2010-10-01

Journal:SMART MATERIALS & STRUCTURES

Included Journals:SCIE、EI、Scopus

Volume:19

Issue:10

ISSN No.:0964-1726

Abstract:The seismic response reduction of the semi-active fuzzy control system including a new type of piezoelectric variable-friction damper and fuzzy controller was investigated on the shaking table under various earthquake records for a building model. The performance of the piezoelectric actuator under different preloads was tested in advance to identify its force generation. The feature test of the damper under either constant or linear increased voltage was carried out to study its motion characteristics. Based on the experimental tests of the damper, a semi-active fuzzy control algorithm was presented for the real-time manipulation of the damper according to the structural response. The seismic performance of the building structural model was tested for the uncontrolled, passive-controlled and semi-active controlled cases. The semi-active control effectiveness of the damper was compared with other cases. Experimental results have indicated that the proposed semi-active control system based on the fuzzy controller and piezoelectric variable-friction damper can be more efficient in reducing the inter-storey drifts and accelerations of the building under various earthquake excitations.