Comparison of Magnetorheological Damper Models through Parametric Uncertainty Analysis Using Generalized Likelihood Uncertainty Estimation

Chen, Cheng; Peng, Changle; Hou, Hetao; Liang, Junjian

doi:10.1061/(asce)em.1943-7889.0001885

Cited by 4 publications

(2 citation statements)

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“…On the other front, dynamical systems have been effective in modeling real-time MR dampers. Among the different models available in the literature (e.g., [ 19 , 30 , 31 , 32 ]), one model in particular has attracted a lot of attention—it is known as the Bouc–Wen model (a comprehensive investigation of the Bouc–Wen model is available in the monograph [ 33 ]). The Bouc–Wen model has no physical meaning; however, the Bouc–Wen model describes hysteresis, and hysteresis is the phenomenon that drives MR dampers.…”

Section: Introductionmentioning

confidence: 99%

“…Using the Dahl model to represent MR dampers also finds support in the literature; see [ 34 , 40 ]. A study has confirmed that the Dahl model can represent large-scale MR dampers with improved performance when the Dahl model accounts for probabilistic uncertainties [ 30 ]. Another study expands the Dahl model to incorporate viscous fluid dynamics, thermal expansion properties, and gas compressibility and elasticity [ 41 ].…”

Section: Introductionmentioning

confidence: 99%

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Shaking Table Attached to Magnetorheological Damper: Simulation and Experiments for Structural Engineering

Vargas

Raminelli

Montezuma

et al. 2022

Sensors

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This paper details how to construct a small-scale shaking table attached to a magnetorheological (MR) damper. The motivation for this construction relies on the increasing interest in modeling the dynamics of MR dampers—MR dampers have been used in structures for safety reasons. To model the MR damper, we use the so-called `Dahl model,’ which is useful to represent systems with a hysteresis. The Dahl model, validated through experimental data collected in a laboratory, was combined with a linear model to represent a two-story building. This two-story building model allows us to simulate the dynamics of that building when its floors are attached to MR dampers. By doing so, we can assess—through simulation—to what extent MR dampers can protect structures from vibrations. Using data from the `El Centro’ earthquake (1940), we can conclude that MR dampers have the potential to reduce the impact of earthquakes upon structures. This finding emphasizes the potential benefits of MR dampers for the safety of structures, which is a conclusion taken from the apparatus detailed in this paper.

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