| Title |
Analytical Behavior Characteristics Analysis of AutomaticRestoring Friction Slit Damper |
| Authors |
이헌우(Lee Heon-Woo);허종완(Hu Jong-Wan) |
| DOI |
https://doi.org/10.12652/Ksce.2024.44.4.0425 |
| Keywords |
초탄성 형상기억합금;마찰댐퍼;슬릿댐퍼;자동복원 Superelastic shape memory alloy;Friction damper;Slit damper;Automatic restoration |
| Abstract |
In this study, we propose a self-restoring friction slit damper by combining the concepts of self-restoring dampers, friction dampers, and steel dampers that are currently used and researched. For this purpose, an innovative damper structure was designed using superelastic shape memory alloy for automatic recovery and combining the concepts of friction damper and slit damper. Afterwards, detailed design was carried out and variables such as material, with of strut, and bolt fastening force were set. Modeling was performed using the ABAQUS program for a total of 12 dampers, and finite element analysis was performed by substituting the designed loading protocol. As a result, the self-recovering friction slit damper using superelastic shape memory alloy was excellent in terms of load, but the energy dissipation ability was not significantly secured due to the excellent recovery performance. However, friction slit dampers made of Gr.50 steel have dramatically improved performance in terms of load and energy dissipation through innovative structural improvements. Through this, the innovative structure of the damper, which combines the mechanisms of a friction damper and a steel damper, was demonstrated. |