Performance of Magnetorheological Fluids Flowing Through Metal Foams

Liu, X.h; Fu, Zemin; Yao, Xingyan; Li, F

doi:10.2478/v10048-011-0028-8

Cited by 22 publications

(16 citation statements)

References 10 publications

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“…The thickness is 1.6mm and diameter 60mm. Therefore, when MR fluid flows through the metal foam, the clogging that occurred in the flowing process can be neglected [16]. The magnetic characteristics of these metal foams are tested by VSM (vibrating sample magnetometer).…”

Section: A Materials Preparationmentioning

confidence: 99%

Dynamic Performance of Different Metal Foam Magnetorheological Fluid Materials

Liu

Gao

et al. 2015

IEEE Trans. Magn.

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SThe paper mainly investigates the dynamic response of different metal foam MR fluid materials experimentally. Metal foam magnetorheological (MR) fluid materials can be used to manufacture the low-cost controllable damping devices with needless of seal and long service life. MR fluid is stored in metal foam by the capillary force mainly.In the action of magnetic field, MR fluid will be extracted out from metal foam and fill up the shear gap, and then, produce the MR effect. Three types of metal foams with different relative permeability, such as, Fe, Ni and Cu, are applied to store MR fluid. A set of testing system, including the plate-on-plate shear test rig, electromotor and force sensor, is built to investigate the dynamic performance of these materials. In order to describe the dynamic response accurately, three parameters of response time are introduced and defined. The magnetic field, both in the shear gap and the pore of metal foam, is simulated by the FEM software. The experimental results show that the response time of metal foam MR fluid materials will change with different currents, which provides the theoretical and experimental basis for the further development of metal foam MR fluid dampers or actuators. Index TermsDynamic performance, magnetorheological fluid, metal foam.

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Section: A Materials Preparationmentioning

confidence: 99%

Dynamic Performance of Different Metal Foam Magnetorheological Fluid Materials

Liu

Gao

et al. 2015

IEEE Trans. Magn.

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“…Some of the innovative products using MR fluids include dampers, clutches, brakes, hydraulic valves and actuators [1][2][3][4][5][6] and many of these products are already commercialized [7]. Normally, the devices that use MR fluids are classified into two types based on particle shape: i) sphere iron particle and ii) plate iron particle [8,9]. The main aim of this review paper is to provide the reader with a basic understanding of the design techniques of various sensors using MR fluid.…”

Section: Introductionmentioning

confidence: 99%

A State-of Art of Creative Sensor Devices Utilizing Magneto- Rheological Fluids

Kaluvan¹,

Kim²,

Oh³

et al. 2015

Int J Mech Syst Eng

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This article presents the state-of-the-art sensors design based on magneto-rheological (MR) fluid. In smart materials, the magneto-rheological fluid is one of the prominent material, which changes rheological properties on application of magnetic field. The MR fluid is mainly used for designing the dampers, clutches and mounts for heavy vehicle systems. However, the MR fluid can also be used for sensor design applications, which has not been much reported in the literature. This review paper summarizes the design of following novel sensors such as resonant, current, magnetic flux and tactile sensors designed using MR fluid. First, this article introduces the design and development of resonant based measurement system used for studying the properties of magneto rheological fluid. Secondly, this paper discusses about the novel electrical current measurement technique using MR fluid in shear mode of operation. This paper discuss on the design of novel variable resistor using the behavioural change of MR fluid in third. Finally, the design of tactile display utilizing magneto rheological fluid is introduced and discussed. Tactile display is used in robotic system in minimally invasive surgery (MIS) to provide a surgeon tactile information of touching remote biological tissues or organs. This review article will motivate the readers to design the novel sensors using magneto-rheological fluid with advanced technology.

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“…Traditionally, control testbeds that are used to validate the performance of MR-fluid dampers for use in civil structures are somewhat large and expensive to operate [89]. In studies using polyurethane foam, the low durability of the foam has been the main shortcoming cited in previous literature [55][56][57][58]. Metal coated polyurethane foam has been proposed and tested to produce similar results for rise-time and performance [55,99] when compared to conventional MR-fluid dampers and expulsion-type dampers.…”

Section: Control *mentioning

confidence: 99%

Limited Bandwidth Wireless Communication Strategies for Structural Control of Seismically Excited Shear Structures

Winter¹

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Performance of Magnetorheological Fluids Flowing Through Metal Foams

Cited by 22 publications

References 10 publications

Dynamic Performance of Different Metal Foam Magnetorheological Fluid Materials

Dynamic Performance of Different Metal Foam Magnetorheological Fluid Materials

A State-of Art of Creative Sensor Devices Utilizing Magneto- Rheological Fluids

Limited Bandwidth Wireless Communication Strategies for Structural Control of Seismically Excited Shear Structures

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