|
Title |
Development of ETMD(Electromagnetic Tuned Mass Damper) for Smart Control of Structure
|
|
Authors |
전승곤(Seung-Gon Jeon) ; 허광희(Gwang-Hee Heo) ; 이진옥(Chin-Ok Lee) ; 이재훈(Jae-Hoon Lee) ; 김대혁(Dae-Hyuk Kim) |
|
DOI |
https://doi.org/10.11112/jksmi.2022.26.3.21 |
|
Keywords |
진동제어; TMD; ETMD Vibration control; Off-tunning; ETMD |
|
Abstract |
The TMD has a simple structure than other vibration control devices and shows excellent control performance for the simple harmonic vibration generated in the structure. However, the vibration control range is narrower than other control devices, making it vulnerable to vibration cycles caused by unexpected external loads. The ETMD developed in this study consisted of Mass with electromagnets. Therefore when supplying a current, the magnetic field is formed to increase the friction force with the friction plate, thereby instantaneously controlling the behavior of the Mass. The experiment was conducted to compare the control performance of the control device by installing the ETMD developed for control performance evaluation in the center of the model simple beam bridge to forced excitation at 3.02 Hz where the maximum bending displacement occurs. As a result of the experiment, ETMD exhibited excellent control performance with a maximum bending displacement attenuation rate of 57.51%.
|