Study on the motion of single particle chain in the magnetorheological fluid under the action of traveling magnetic field

Sun, Zebang; Liu, Shaogang; Zhao, Dan; Dong, Liqiang; Qi, Jinming; Guo, Chang

doi:10.1088/1361-665x/ad026e

Cited by 3 publications

(2 citation statements)

References 35 publications

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“…For the TMF generator, it is also by changing the frequency of the three-phase alternating current generated by the TMF control device to change the TMF moving velocity v s . The TMF moving velocity can be calculated by equation (29) [28,40]…”

Section: Experimental Principle and Experimental Setupmentioning

confidence: 99%

A novel adjustable magnetorheological fluid gradient material of low frequency vibration isolation: a theoretical and experimental study

Sun,

Zhao,

Dong

et al. 2024

Smart Mater. Struct.

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In this paper, a novel adjustable magnetorheological fluid (MRF) gradient material for low-frequency control is proposed, and the vibration isolation performance of this gradient material is investigated theoretically and experimentally. The gradient material has an excellent ability to control the sound waves and vibrations. However, the currently prepared gradient material does not have the parameter adjustability. At the same time, the MRF can change its material parameters according to the external magnetic field. After applying the traveling magnetic field (TMF) to the MRF with continuously varying and adjustable magnetic induction strength, its material parameters will also be continuously varying and adjustable to constitute an adjustable gradient material. In order to investigate the vibration transfer characteristics of this adjustable gradient material, this paper establishes a micro-mechanical model of MRF and theoretically investigates and numerically calculates the mechanical impedance and vibration transfer characteristics of the adjustable gradient material through the machine-electric analogy theory. At the same time, experimental research was conducted by building an experimental platform to conduct experiments. The results show that the novel adjustable gradient material composed of a TMF and MRF has a good vibration suppression effect in the low-frequency range (10~60Hz) with the vibration level difference of up to 30dB or more, which has a broad application prospect in the field of vibration control.

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Section: Experimental Principle and Experimental Setupmentioning

confidence: 99%

A novel adjustable magnetorheological fluid gradient material of low frequency vibration isolation: a theoretical and experimental study

Sun,

Zhao,

Dong

et al. 2024

Smart Mater. Struct.

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“…In equation (10), B is the vector of the magnetic induction strength of the TMF, since the magnetic induction strength of the TMF is sinusoidally distributed along the z-axis direction and directionally moving, as shown in figure 2, let the magnetic induction strength of the TMF be B 0 and move in the negative direction of the z-axis with the velocity v s , k is the unit vector along the z-axis, then the vector of the magnetic induction strength of the TMF can be calculated according to equation (11) [34] B = B 0 sin (τ s z + v s t) k. (11) According to the relationship between the TMF moving velocity v s and the frequency f 0 of three-phase AC in equations ( 2) and ( 11) can be converted to the form shown in equation ( 12)…”

Section: Analysis and Dynamic Model Of Particle Chain Spin Motionmentioning

confidence: 99%

Self-assembly of ferromagnetic particles into chains and spin under the control of traveling magnetic field

Sun,

Liu,

Zhao

et al. 2023

J. Phys. D: Appl. Phys.

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In this paper, the spin phenomenon of self-assembly of ferromagnetic particles to form particle chains under the action of a traveling magnetic field (TMF) is investigated, and a TMF generator is designed and fabricated to experimentally observe the self-assembly and spin phenomenon of ferromagnetic particles under the action of TMF. The TMF generator is capable of generating a TMF, which is an alternating motion magnetic field with sinusoidally varying and translating magnetic induction, under the action of which a chain of self-assembled ferromagnetic particles is subjected to an alternating magnetic force thereby generating a spin motion. By analyzing the spin mechanism of the self-assembled ferromagnetic particle chain, the relationship between the rotational velocity of the spin motion of the particle chain and the frequency of the three-phase AC power supply of the TMF generator was obtained. Adjusting the frequency of the three-phase AC power supply of the TMF generator can control the spin velocity of the particle chain. TMF generator enable ferromagnetic particles to self-assemble to form particle chains and drive the particle chains to spin controllably, which has a wide range of applications in micro-robotics, biomedicine, and microfluidics.

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Microfluidic mixing by magnetic particles: Progress and prospects

Misra,

Kumaran

2024

Biomicrofluidics

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Microfluidic systems have enormous potential for enabling point-of-care diagnostics due to a number of advantages, such as low sample volumes, small footprint, low energy requirements, uncomplicated setup, high surface-to-volume ratios, cost-effectiveness, etc. However, fluid mixing operations are constrained by molecular diffusion since the flow is usually in the laminar regime. The slow nature of molecular diffusion is a technological barrier to implementing fluid transformations in a reasonable time. In this context, magnetically actuated micro-mixers of different sizes, shapes, materials, and actuation techniques provide a way to enhance fluid mixing in microfluidic devices. In this paper, we review the currently existing micro-mixing technologies. From a fundamental perspective, the different magnetization models for permanent and induced dipoles are discussed. The single-particle dynamics in steady and oscillating magnetic fields is studied in order to determine the flow generated and the torque exerted on the fluid due to the magnetic particles. The effect of particle interactions, both magnetic and hydrodynamic, is examined.

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Study on the motion of single particle chain in the magnetorheological fluid under the action of traveling magnetic field

Cited by 3 publications

References 35 publications

A novel adjustable magnetorheological fluid gradient material of low frequency vibration isolation: a theoretical and experimental study

A novel adjustable magnetorheological fluid gradient material of low frequency vibration isolation: a theoretical and experimental study

Self-assembly of ferromagnetic particles into chains and spin under the control of traveling magnetic field

Microfluidic mixing by magnetic particles: Progress and prospects

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