A Semi-Active Control Technique through MR Fluid Dampers for Seismic Protection of Single-Story RC Precast Buildings

Caterino, Nicola; Spizzuoco, Mariacristina; Piccolo, Valeria; Magliulo, Gennaro

doi:10.3390/ma15030759

Cited by 13 publications

(6 citation statements)

References 26 publications

(33 reference statements)

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“…MREAs have advantages of continuously adjustable force, wide dynamic range, fast response, simple structure, and low power consumption, thus they have been broadly used (Ahamed et al 2018) in the fields of automobile suspensions , Bai et al 2013, Sun et al 2019, El Majdoub et al 2020, train suspensions (Liao and Wang 2003), vibration control of bridges (Gordaninejad et al 2002, Zhao et al 2019, Xu et al 2020 and seismic protection of buildings (Xu and Li 2008, Bitaraf et al 2010, Li et al 2013, Xu et al 2014, Caterino et al 2022, Huang and Li 2022). These applications have been extensively studied, and most of MREAs for vibration control work at low speeds (<1.0 m s −1 ).…”

Section: Mreasmentioning

confidence: 99%

Adaptive magnetorheological fluid energy absorption systems: a review

Bai,

Zhang,

Choi

et al. 2024

Smart Mater. Struct.

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Since last two decades, magnetorheological (MR) fluids have attracted attention extensively since they can rapidly and continuously control their rheological characteristics by adjusting an external magnetic field. Because of this feature, MR fluids have been applied to various engineering systems. This paper specifically investigates the application of MR fluids in shock mitigation control systems from the aspects of three key technical components: the basic structural design of MR fluid-based energy absorbers (MREAs), the analytical and dynamical model of MREAs, and the control method of adaptive MR shock mitigation control systems. The current status of MR technology in shock mitigation control is presented and analyzed. Firstly, the fundamental mechanical analysis of MREAs is carried out, followed by the introduction of typical MREA configurations. Based on the mechanical analysis of MREAs, the structural optimization of MREAs used in shock mitigation control is discussed. The optimization methods are given from perspectives of the design of piston structures, the layout of electromagnetic coil, and the MR fluid gap. Secondly, the methods of damper modeling for MREAs are introduced with and without the consideration of inertia effect, respectively. Then both the modeling methods and their characteristics are introduced for representative parametric dynamic models, semi-empirical dynamic models, and non-parametric dynamic models. Finally, the control objectives and requirements of the shock mitigation control systems are analyzed, and the current competitive methods for the ideal “soft-landing” control objectives are reviewed. The typical control methods of the MR shock mitigation control systems are discussed, and based on this the evaluation indicators of the control performance are summarized in MR shock mitigation control systems.

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Section: Mreasmentioning

confidence: 99%

Adaptive magnetorheological fluid energy absorption systems: a review

Bai,

Zhang,

Choi

et al. 2024

Smart Mater. Struct.

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“…The magnetorheological damper (MRD) is one of the typical representatives of semi-active dampers, and it can control the magnitude of magnetic induction through the external excitation current, thereby adjusting the dynamic shear yield stress of magnetorheological fluid (MRF), so as to achieve the effect of tunable damping characteristics. Due to its fast response speed and low power consumption [3][4][5][6], it has been extensively used in low-frequency vibration fields, such as automotive suspension [7][8][9][10][11], buildings [12][13][14][15][16], bridges [17][18][19][20], prosthetics [21][22][23][24][25], etc.…”

Section: Introductionmentioning

confidence: 99%

Dual-stage theoretical model of magnetorheological dampers and experimental verification

Lei,

Li,

Zhou

et al. 2024

Smart Mater. Struct.

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The theoretical model for predicting the damping characteristics of magnetorheological dampers (MRDs) not only facilitates the optimization of MRD parameters, but also provides assistance for the theoretical design of MRDs. However, some existing models have limitations in fully characterizing the damping characteristics of MRDs. In this paper, the workingstageof MRDs was categorized into yield and pre-yield stages based on whether the internal magnetorheological fluid (MRF) attains the dynamic shear yield state or not, and the Herschel-Bulkley model with pre-yield viscosity(HBPV) and improved polynomial model (IPOL) were employed to respectively characterize the yield and pre-yield stages of MRDs. Subsequently, the HBPV-IPOL model was proposed to characterize the complete damping characteristics of MRDs in low-frequency vibration conditions, with considering the local loss effect of the fluid in the model. To accurately characterize the magnetic induction intensity in the MRD damping channel, employing the steady-state finite element method (FEM) for magnetic field analysis; on this basis, dividing the damping channel to investigate the variation trends of the magnetic induction intensity in different regions. Simultaneously, the zero-field region hypothesis was proposed to quantitatively consider the influence of minute magnetic induction intensity in the traditional zero-field regions on the damping characteristics of MRDs. Finally, integrating the impact trends of currents in different regions, and employing the HBPV model to determine the impact magnitude of each region within the damping channel on the damping characteristics of the MRD in the yield stage. In the pre-yield stage, Polynomial curves were fitted to experimental damping force-velocity curves, and the obtained polynomials were employed to predict the damping characteristics. Extensive experiments have been conducted on MRD samples to assess the predictive performance of the model on MRD damping characteristics under sinusoidal displacement excitation vibration conditions with different excitation currents, vibration frequencies and vibration amplitudes.

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“…According to unusual properties, Magnetorheological Fluids are widely applied in different branches of industry (Ahamed et al, 2018), in particular in many commercial devices, especially operating on the LORD Corporation’s MR fluids (Ashtiani and Hashemabadi, 2015; Dyniewicz et al, 2014; Kciuk and Turczyn, 2006; Mangal and Kumar, 2015). Most of the applications are based on mechanical devices like clutches (Johnston et al, 1998; Olszak et al, 2019), seals (Zhou et al, 2020), shock absorbers, (Deng et al, 2019; Yoon et al, 2020; Zhong et al, 2020), vibration dampers (Carlson and Charzan, 1994; Wang et al, 2018; Wei et al, 2020; Yuan et al, 2019), valves (Hu et al, 2019), brakes (Wu et al, 2018; Zhu and Geng, 2018), or even seismic vibration dampers (Caterino et al, 2022; Christie et al, 2019; Gordaninejad et al, 2002; Jung et al, 2003; Li et al, 2007; Liu et al, 2001, 2005; Zareie et al, 2022) to reduce different vibrations. They offer quiet, rapid-response, and simple interfaces between the mechanical and electronic systems used for mechanical energy dissipation.…”

Section: Introductionmentioning

confidence: 99%

Magnetorheological fluids: A concise review of composition, physicochemical properties, and models

Osial

Pręgowska

Warczak

et al. 2023

Journal of Intelligent Material Systems and Structures

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Magnetorheological fluids (MRFs) are classified as intelligent materials whose rheological and mechanical properties can be modified by interaction with an external magnetic field. These unique features allow for a controlled change of their viscosity, which is applied in technology to build adaptive devices and effectively suppress vibrations in various mechanical systems. In this paper, we overview and discuss our previous results regarding advances and physicochemical MRF properties in the context of broader literature. We concentrated on such properties as flow, yield strength, and viscoelastic behavior under shearing flows. We briefly discussed continuum and discrete MRFs modeling. Since the magnetic core is mainly based on iron or its compounds, depending on its chemical composition, morphology, stabilizing agents, and the liquid medium’s viscosity, its rheological and micromechanical properties can be moderated. To predict the behavior of such a fluid, it is necessary to propose and implement an appropriate model. Simple models like Bingham can consider the quasi-static and dynamic behavior of the MRFs, while discrete models are applied to the development and implementation of the MRF control algorithms. Thus, analytical and numerical simulation compromise the accuracy, quantity of considered phenomena, and computational cost.

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A Semi-Active Control Technique through MR Fluid Dampers for Seismic Protection of Single-Story RC Precast Buildings

Cited by 13 publications

References 26 publications

Adaptive magnetorheological fluid energy absorption systems: a review

Adaptive magnetorheological fluid energy absorption systems: a review

Dual-stage theoretical model of magnetorheological dampers and experimental verification

Magnetorheological fluids: A concise review of composition, physicochemical properties, and models

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