Performance verification of a semi-active mass damper by using shaking table test

S. Y. Chu, L. Y. Lu, S. W. Yeh, C. H. Peng

研究成果: Conference contribution

摘要

The mitigation of structure vibration subjected to strong wind by using a tuned mass damper (TMD) has been applied practically and is demonstrated be an effective technology. However, a TMD with fixed design parameters may not alleviate the responses of structure subjected seismic loadings because the frequency content of earthquake is complex and unpredictable. To solve this problem, a semi-active mass damper (SAMD) whose designed parameters can be adjusted according to structural responses through the application of appropriate control force to the original passive device has been proposed in recent years. A leverage-type stiffness controllable mass damper (LSCMD) is adopted in this study to improve the performance of a conventional TMD. Based on the discrete-time optimal LQR output feedback control algorithm, the control performance of the LSCMD can be improved as deigned. Therefore, the target pivot position of the leverage mechanism can be determined in real time to provide the controllable stiffness for the LSCMD. To demonstrate the theory and feasibility of the LSCMD, a shaking table test is also conducted. From the comparisons of experimental and numerical results, the structural responses subjected to white noise earthquake and Chi-Chi earthquake can be suppressed with smaller stroke when equipped with LSCMD.

原文English
主出版物標題5th International Conference on Advances in Experimental Structural Engineering, AESE 2013
發行者EUCENTRE
ISBN(電子)9780000000002
出版狀態Published - 2013 一月 1
事件5th International Conference on Advances in Experimental Structural Engineering, AESE 2013 - Taipei, Taiwan
持續時間: 2013 十一月 82013 十一月 9

出版系列

名字International Conference on Advances in Experimental Structural Engineering
2013-November
ISSN(電子)2522-2503

Other

Other5th International Conference on Advances in Experimental Structural Engineering, AESE 2013
國家/地區Taiwan
城市Taipei
期間13-11-0813-11-09

All Science Journal Classification (ASJC) codes

  • 土木與結構工程
  • 建築與營造

指紋

深入研究「Performance verification of a semi-active mass damper by using shaking table test」主題。共同形成了獨特的指紋。

引用此