| dc.creator | Hazaveh, Nikoo K. | |
| dc.creator | Rodgers, Geoffrey W. | |
| dc.creator | Chase, J. Geoffrey | |
| dc.creator | Pampanin, Stefano | |
| dc.date | 2018-06-30 | |
| dc.identifier | https://bulletin.nzsee.org.nz/index.php/bnzsee/article/view/40 | |
| dc.identifier | 10.5459/bnzsee.51.2.105-112 | |
| dc.description | Viscous fluid damping has been used worldwide to provide energy dissipation to structures during earthquakes. Semi-active dissipation devices have also shown significant potential to re-shape structural hysteresis behaviour and thus provide significant response and damage reduction. However, semi-active devices are far more complex and costly than passive devices, and thus potentially less robust over time. Ideally, a passive device design would provide the unique response behaviour of a semi-active device, but in a far more robust and low-cost device. This study presents the design, development and characterization of a passive Direction and Displacement Dependent viscous damping (D3) device. It can provide viscous damping in any single quadrant of the force-displacement hysteresis loop and any two in combination. Previously, this behaviour could only be obtained with a semi-active device. The D3 device is developed from a typical viscous damper, which is tested to evaluate the baseline of orifice sizing, force levels and velocity dependence. This prototype viscous damper is then modified in clear steps to produce a device with the desired single quadrant hysteresis loop. The overall results provide the design approach, device characterization and validation for this novel device design. | en-US |
| dc.format | application/pdf | |
| dc.language | eng | |
| dc.publisher | New Zealand Society for Earthquake Engineering | en-US |
| dc.relation | https://bulletin.nzsee.org.nz/index.php/bnzsee/article/view/40/26 | |
| dc.rights | Copyright (c) 2018 Nikoo K. Hazaveh, Geoffrey W. Rodgers, J. Geoffrey Chase, Stefano Pampanin | en-US |
| dc.rights | https://creativecommons.org/licenses/by/4.0 | en-US |
| dc.source | Bulletin of the New Zealand Society for Earthquake Engineering; Vol 51 No 2 (2018); 105-112 | en-US |
| dc.source | 2324-1543 | |
| dc.source | 1174-9857 | |
| dc.title | Passive direction displacement dependent damping (D3) device | en-US |
| dc.type | info:eu-repo/semantics/article | |
| dc.type | info:eu-repo/semantics/publishedVersion | |
| dc.type | Article | en-US |
