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Modified energy dissipation algorithm for seismic structures using magnetorheological damper
Abstract A simple modified energy dissipation algorithm is presented for seismic response reduction. The magnetorheological (MR) damper, an efficient semiactive device is controlled using a maximum energy dissipation algorithm (MEDA), as well as a newly proposed modified variable energy dissipation algorithm (VEDA) that supplies continuously varying command voltages. For MEDA, the command voltage is either zero or the maximum value. In some situations when the dominant frequencies of the system under control are low, large changes in the forces applied to the structure may result in high local acceleration values. The VEDA is proposed as a modification to the original MEDA to reduce this effect. Also the applicability of the VEDA-based semiactive control system using MR dampers is investigated through numerical simulation of a three-story shear building.
Modified energy dissipation algorithm for seismic structures using magnetorheological damper
Abstract A simple modified energy dissipation algorithm is presented for seismic response reduction. The magnetorheological (MR) damper, an efficient semiactive device is controlled using a maximum energy dissipation algorithm (MEDA), as well as a newly proposed modified variable energy dissipation algorithm (VEDA) that supplies continuously varying command voltages. For MEDA, the command voltage is either zero or the maximum value. In some situations when the dominant frequencies of the system under control are low, large changes in the forces applied to the structure may result in high local acceleration values. The VEDA is proposed as a modification to the original MEDA to reduce this effect. Also the applicability of the VEDA-based semiactive control system using MR dampers is investigated through numerical simulation of a three-story shear building.
Modified energy dissipation algorithm for seismic structures using magnetorheological damper
Choi, Kang Min (author) / Lee, Heon-Jae (author) / Cho, Sang-Won (author) / Lee, In Won (author)
KSCE Journal of Civil Engineering ; 11 ; 121-126
2007-03-01
6 pages
Article (Journal)
Electronic Resource
English
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