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- W2893665996 abstract "Summary Tuned mass dampers (TMDs), despite being efficient because the structure has not experienced damage and properties degradation, lose efficiency when the mechanical properties of the structure changes and detuning effects occur. Semiactive TMDs have been shown superior to the traditional passive ones and more efficient and reliable than the active counterparts for the detuning problem. This study presents a novel semi active system that is able to respond efficiently and maintain such a performance even in the case of structural damage. This scheme is composed of a variable stiffness component, a resettable element, and a friction brake. The system dissipates energy using the resetting mechanism and is able to change stiffness when the tuned frequency of the structure changes due to structural damage. The friction device is responsible for maintaining the TMD in the optimal phase lag to the structure, that is, −90 ° , and thus keeping the TMD in the optimal performance. This strategy has been tested on a single‐degree‐of‐freedom frame, to understand the system behavior under harmonic excitation, as well as a 10‐story shear type frame under strong seismic motions. The proposed system has shown to be effective and competent comparing analysis results to active and passive TMDs." @default.
- W2893665996 created "2018-10-05" @default.
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- W2893665996 date "2018-09-25" @default.
- W2893665996 modified "2023-10-14" @default.
- W2893665996 title "Performance evaluation of phase-controlled semiactive resettable TMD (PCRTMD) with the stiffness retuning ability under strong seismic motions" @default.
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- W2893665996 doi "https://doi.org/10.1002/tal.1502" @default.
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