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Semi-active structural vibration control of base-isolated buildings using magnetorheological dampers
| Content Provider | SAGE Publishing |
|---|---|
| Author | Oliveira, Fernando Botto, Miguel Ayala Morais, Paulo Suleman, Afzal |
| Copyright Year | 2017 |
| Abstract | In recent years, several solutions for structural vibration control of buildings have been proposed. In particular, the combination of base-isolated structures with complementary variable damping devices has been successful in reducing the base isolator displacements without increasing the building superstructure response when subjected to earthquake loads. In this paper, a magnetorheological device is installed on a 2-DOF mechanical model mounted on an experimental uniaxial shaking table. A simple numerical simulation model is derived for the experimental setup and it represents a typical base-isolated structure with a semi-active vibration controller. The control law combines a force tracking integral action with a clipped on–off adaptation rule that changes the magnetorheological damping in real time. The effectiveness of the proposed solution is demonstrated for both earthquake-like and real earthquake input ground motions. A comparison between the numerical and the experimental results validates the numerical simulations and it gives confidence in using this model for validation and evaluation of other semi-active control solutions based on magnetorheological dampers. |
| Related Links | https://journals.sagepub.com/doi/pdf/10.1177/1461348417725959?download=true |
| Starting Page | 565 |
| Ending Page | 576 |
| Page Count | 12 |
| ISSN | 14613484 |
| Issue Number | 3 |
| Volume Number | 37 |
| Journal | Journal of Low Frequency Noise, Vibration and Active Control (LFN) |
| e-ISSN | 20484046 |
| DOI | 10.1177/1461348417725959 |
| Language | English |
| Publisher | Sage Publications UK |
| Publisher Date | 2017-08-21 |
| Publisher Place | London |
| Access Restriction | Open |
| Rights Holder | © The Author(s) 2017 |
| Subject Keyword | base-isolated buildings magnetorheological damper Structural vibration semi-active control |
| Content Type | Text |
| Resource Type | Article |
| Subject | Building and Construction Acoustics and Ultrasonics Mechanics of Materials Geophysics Mechanical Engineering Civil and Structural Engineering |
