Design and Modeling of a Magnetorheological Valve With Both Annular and Radial Flow Paths

Ai, H. X.; Wang, D. H.; Liao, Wei-Hsin

doi:10.1142/9789812702197_0122

Cited by 14 publications

(19 citation statements)

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“…In this study, two types of pressure drops are derived and utilized for the design of the MR mount [16]. Figure 8a shows the annular duct having the thickness , length , radius , and flow rate .…”

Section: Design Of Mr Mountmentioning

confidence: 99%

Design and Evaluation of a Semi-Active Magneto-rheological Mount for a Wheel Loader Cabin

et al. 2017

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Abstract:In this study, a semi-active magneto-rheological (MR) mount is designed and manufactured to minimize unwanted vibrations for the cabin of heavy vehicles. Normally, working conditions in heavy vehicles are extremely rugged. Usually, the heavy vehicles use passive rubber mounts for the reduction of vibrations from road. However, the passive mount has definite performance limitations because the passive mount has a fixed resonance frequency when the design is finished. An MR application is one of the solutions because the viscosity of MR fluid can be controlled. As a first step, an experimental apparatus was established for performance evaluation of the mounts. The apparatus has hydraulic excitatory, force, and displacement sensors. Performance of two different passive mounts used in industrial fields were evaluated. The passive mount data of force-displacement, force-velocity, and displacement transmissibility were collected and tested. After that, an MR mount was designed and manufactured that provides better performance using the passive mount data. The MR mount uses two different flow paths, annular duct and radial channels, for generating the required damping force. The field-dependent damping forces were then evaluated with respect to the moving stroke and input current. In this work, in order to control the damping force, an on-off controller associated with the fast Fourier transform (FFT) was used. The control results of the MR mount were compared with the results of passive rubber mounts. It was shown that the semi-active MR mount can attenuate vibrations more effectively at all frequency ranges compared with the passive rubber mount.

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Section: Design Of Mr Mountmentioning

confidence: 99%

Design and Evaluation of a Semi-Active Magneto-rheological Mount for a Wheel Loader Cabin

et al. 2017

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“…Gordaninejad also compared the response times of the MR valve with the annular flow and radial flow geometries. Wang and Ai [25][26] proposed a novel MR valve with annular flow and radial flow resistance gaps, and the results showed that the radial fluid flow gaps in the MR valve were more efficient in providing a larger controllable range than those with annular fluid flow gaps. Imaduddin and Mazlan [27][28] also developed a compact MR valve with multiple annular and radial gaps.…”

Section: Introductionmentioning

confidence: 99%

Design and performance evaluation of a novel magnetorheological valve with a tunable resistance gap

Long

et al. 2014

Smart Mater. Struct.

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This paper outlines the design and development of a novel magnetorheological (MR) valve with a tunable resistance gap that varies from 1 mm to 2 mm by rotating a valve spool. The finite element modelling and analysis of this proposed MR valve was carried out using ANSYS/Emag software, including achieving the optimal magnetic field distribution and magnetic flux density. A mathematical model of the pressure drop in the MR valve was built to study the pressure drop mechanism while considering the conical annular resistance gap. Moreover, this proposed MR valve with a tunable resistance gap was prototyped and evaluated experimentally, showing that the MR valve has significantly improved its efficiency. Keywords AbstractThis paper outlines the design and development of a novel magnetorheological (MR) valve with a tunable resistance gap that varies from 1 mm to 2 mm by rotating a valve spool. The finite element modelling and analysis of this proposed MR valve was carried out using ANSYS/Emag software, including achieving the optimal magnetic field distribution and magnetic flux density. A mathematical model of the pressure drop in the MR valve was built to study the pressure drop mechanism while considering the conical annular resistance gap. Moreover, this proposed MR valve with a tunable resistance gap was prototyped and evaluated experimentally, showing that the MR valve has significantly improved its efficiency.

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“…Gordaninejad also compared the response times of the MR valve with the annular flow and radial flow geometries. Wang and Ai [26,27] proposed a novel MR valve with annular flow and radial flow resistance gaps. The results show that the radial fluid flow gaps in the MR valve can reach a higher efficiency and larger controllable range than those by annular fluid flow gaps to some extent.…”

Section: Introductionmentioning

confidence: 99%

Design, Analysis, Prototyping, and Experimental Evaluation of an Efficient Double Coil Magnetorheological Valve

Long

Huang

et al. 2014

Advances in Mechanical Engineering

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A double coil magnetorheological (MR) valve with an outer annular resistance gap was designed and prototyped. The finite element modeling and analysis of double coil MR valve were carried out using ANSYS/Emag software, and the optimal magnetic field distribution and magnetic flux density of the double coil MR valve were achieved. The mechanism of the pressure drop was studied by building a mathematical model of pressure drop in the double coil MR valve. The proposed double coil MR valve was prototyped and its performance was experimentally evaluated. The new MR valve design has improved the efficiency of double coil MR valve significantly.

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Design and Modeling of a Magnetorheological Valve With Both Annular and Radial Flow Paths

Cited by 14 publications

References 0 publications

Design and Evaluation of a Semi-Active Magneto-rheological Mount for a Wheel Loader Cabin

Design and Evaluation of a Semi-Active Magneto-rheological Mount for a Wheel Loader Cabin

Design and performance evaluation of a novel magnetorheological valve with a tunable resistance gap

Design, Analysis, Prototyping, and Experimental Evaluation of an Efficient Double Coil Magnetorheological Valve

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