The Effect of Sr-CoFe2O4 Nanoparticles with Different Particles Sized as Additives in CIP-Based Magnetorheological Fluid

Nugroho, Kacuk Cikal; Ubaidillah, Ubaidillah; Arilasita, Retna; Margono, Margono; Priyambodo, Bambang Hari; Purnama, Budi; Mazlan, Saiful Amri; Choi, Seung–Bok

doi:10.3390/ma14133684

Cited by 9 publications

(4 citation statements)

References 63 publications

(77 reference statements)

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“…Substituting Equation (18) into Equation ( 8) to obtain the shear stress distribution equation in each region of the parallel plate model:…”

Section: Flow Binghammentioning

confidence: 99%

“…Based on the good electromechanical coupling characteristics of magnetorheological smart materials, great results are achieved in anti-vibration control, and it also provides the possibility for the shock buffer control design of electromechanical systems under complex conditions [17]. Wang et al proposed the application of magnetorheological damper to the recoil of artillery [18], which established a dynamic model of magnetorheological damper and discussed the application of magnetorheological damper in application on the anti-recoil device of the artillery. Subsequently, the team conducted research on the dynamic characteristics of the magnetorheological damper under the impact of the artillery barrel force [19].…”

Section: Introductionmentioning

confidence: 99%

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Analysis of Damping Characteristics of Magnetorheological Damper under Impact Load

Sun

Zhou

et al. 2022

Materials

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Compared to magnetorheological fluid, magnetorheological gel has better anti-settling performance and stability. Therefore, magnetorheological gel is suitable for devices that can meet operational requirements in all aspects after long-term storage, such as the anti-recoil application of weapons. To study this in-depth, the mechanism of the influence of magnetorheological gel micro-magnetic-mechanical properties on the macro-output damping mechanics of the damper, a parallel plate model of the mixed flow mode composed of Couette shear flow and Poiseuille pressure flow was established. The theoretical analysis was of the output damping of the damper. Finally, the controllability of the damper under impact load employed magnetorheological gel was preliminarily analyzed. The results indicate that the damping coefficient of the damper increases with the increase of dynamic viscosity ηB of the magnetorheological gel, piston effective cross-sectional area AP, magnetic pole L, and Bingham coefficient Bi. Magnetorheological damper has controllability under impact load and can reach a wide controllable range under the condition under small magnetic field ranging from 0mT to 131mT.

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“…Substituting Equation (18) into Equation ( 8) to obtain the shear stress distribution equation in each region of the parallel plate model:…”

Section: Flow Binghammentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Analysis of Damping Characteristics of Magnetorheological Damper under Impact Load

Sun

Zhou

et al. 2022

Materials

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“…Magnetorheological fluid [1] (MRF) is an intelligent material consisting of magnetizable particles, flow carriers, and stabilizer additives [2]. The magnetorheological damper (MRD), which takes advantage of MRF, has a wide range of adjustable, fast response, low energy consumption, and "fail-safe" characteristics [3].…”

Section: Introductionmentioning

confidence: 99%

Quasi-Static Modelling of a Full-Channel Effective Magnetorheological Damper with Trapezoidal Magnetic Rings

Wu,

Hu,

et al. 2023

Materials

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Magnetorheological damper (MRD) has been successfully applied to vehicle suspension systems as an intelligent core component. Most conventional MRDs have closed rectangle-shaped magnetic circuits, resulting in a short effective working length and negligible damping force. To address the above issues, a novel full-channel effective MRD with trapezoidal magnetic rings (FEMRD_TMR) is proposed. The trapezoidal magnetic ring can shunt the magnetic circuit, distributing it evenly along the damping channel and increasing the effective working length. Additionally, which has the same variation trend as the magnetic flux through it, makes the magnetic induction intensity distribution more uniform to reduce the magnetic saturation problem. Theoretically analyzing the damping characteristics of the FEMRD_TMR, a quasi-static model is developed to forecast the output damping force. The structural design of MRD is challenging since conventional quasi-static models rely on the yield stress of magnetorheological fluid (MRF) to reflect the rheological property, which cannot be directly observed and is challenging to calculate. The Takagi–Sugeno (T–S) fuzzy neural network and a unique magnetic circuit computation are offered as a novel quasi-static modeling approach to address the issue. The MRF’s yield stress is linearized into magnetic induction intensity functions by the T–S fuzzy neural network and then converted into the MRD’s structural size by the special magnetic circuit calculation. Therefore, the proposed quasi-static model can directly reflect the relationship between the damping force and structure size, simplifying MRD’s structure design. The novel quasi-static model is shown to be more straightforward and understandable than the conventional Bingham quasi-static model and to have approximately accurate damping force prediction when compared to experimental data.

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“…Jang et al [17] studied rod-like γ-Fe 2 O 3 nanoparticles to improve the suspension stability of MR fluid. Besides, it has been confirmed that the size of the nanoparticles has an effect on both the MR properties and the suspension stability of MR fluid [18]. Shah et al [19] studied the performance of MR dampers filled with a low sedimentation MR fluid with plate-like iron particles at different time intervals.…”

Section: Introductionmentioning

confidence: 99%

Hydrodynamic behaviors of settled magnetorheological fluid redispersion under active dispersing mechanism: simulation and experiment

Zou¹,

Zhang²,

Liao³

et al. 2022

Smart Mater. Struct.

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Despite several salient benefits of numerous control systems utilizing magnetorheological (MR) fluid, practical realization of commercial products is limited due to the particles sedimentation. To overcome this problem, several measures have been proposed to optimize MR fluid settling through the viewpoints of dispersing medium viscosity, suspension force of dispersed phase and additives innovation, but the settling of MR fluid can be alleviated to an extent only. An active dispersing mechanism (ADM) proposed in the previous work is one of attractive ways to resolve the sedimentation problem in a level of device and it is promising to fulfil good serviceability for MR dampers even if the settling remains. In this work, attributive to the investigations in stirring devices, rotary blades are employed to fulfil the redispersing of settled MR fluid under the theory of solid-liquid two phase flow. The parameters and working conditions of the rotary blades are optimized to guide experimental verification in a damper-sized vessel. The vessel can be seen as a prototype for real MR damper. An immersed induction method (IIM) for the characterization of the localized MR fluid concentration is proposed to designate the dispersing process when ADM is started. With the experiments of different MR fluid volume fractions and rotating speeds of the rotary blades, it is fully testified that the faster the blades rotate, the shorter the mixing time, and the more the inclination angle of blades close to 45°, the better the dispersion capability. In addition, it is also identified that the ADM is effective to disperse the settled MR fluid and promising to the sedimentation immunity of MR damper.

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The Effect of Sr-CoFe2O4 Nanoparticles with Different Particles Sized as Additives in CIP-Based Magnetorheological Fluid

Cited by 9 publications

References 63 publications

Analysis of Damping Characteristics of Magnetorheological Damper under Impact Load

Analysis of Damping Characteristics of Magnetorheological Damper under Impact Load

Quasi-Static Modelling of a Full-Channel Effective Magnetorheological Damper with Trapezoidal Magnetic Rings

Hydrodynamic behaviors of settled magnetorheological fluid redispersion under active dispersing mechanism: simulation and experiment

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