Electromagnetic analysis in magnetic suspension mechanism of a wind tunnel for spinning body

Hasan, Shahajada Mahmudul; Mizuno, Takeshi; Takasaki, Masaya; Ishino, Yuji

doi:10.3233/jae-162077

Cited by 5 publications

(4 citation statements)

References 2 publications

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“…From the output of the DSP based digital controller through power amplifier, the required coil current is supplied to the system. In this model only four power amplifier is used to supply current to the four coils rather than the previous system [8,9], where eight power amplifiers were used.…”

Section: Magnetic Suspension Mechanismmentioning

confidence: 99%

“…A system is developed to measure the magnetic force acting on the floator [9]. Initially, the constant current required for the levitation of the floator is supplied and as the floator is placed approximately at the point of levitation, there is some deflection in the output of the load cell.…”

Section: Comparison Of Magnetic Forcementioning

confidence: 99%

“…Rotation of the body has been realized by superimposing two-phase AC signals on the control signals for the horizontal directions and thus rotation in vertical direction has been achieved. The variation of the force with the increase of current through electromagnet is also estimated analytically by using 3D FEM [9]. Experimental analysis was also carried out.…”

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Design and Fabrication of an Enlarged Wind Tunnel System for Spinning Body Using Magnetic Suspension

Hasan

Mizuno

Takasaki

et al. 2016

Journal of the Japan Society of Applied Electromagnetics and Me

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A wind tunnel system for a spinning body was developed for the measurement of the hydrodynamic forces acting on the body. In that system a ferromagnetic sphere (body) was suspended and rotated by electromagnets. The forces acting on the body were measured from the control signal for suspension. However this existing arrangement is not still appropriate to observe accurate hydrodynamic phenomena around the floating object because the size of the wind tunnel is only 60×60mm. It is required to enlarge the size to reduce the interferences with the walls. In this work, a wind-tunnel system of 100×100mm is proposed to be fabricated. Before the development of the system, the electromagnetic analysis for the system has been carried out. A 3D model of the arrangement is taken in consideration for the analysis. The magnetic flux distributions as well as magnetic force acting on the suspended object are obtained. The magnetic flux densities are analyzed for the variation of current in electromagnets. Actual force acting on the body is also measured. It is observed that the experimental results support the results obtained by numerical analysis. Stable suspension and three-dimensional positioning of the body is achieved in the developed system. Spinning of the body is realized by superimposing two-phase AC signals on the control signal.

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Section: Magnetic Suspension Mechanismmentioning

confidence: 99%

Section: Comparison Of Magnetic Forcementioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Design and Fabrication of an Enlarged Wind Tunnel System for Spinning Body Using Magnetic Suspension

Hasan

Mizuno

Takasaki

et al. 2016

Journal of the Japan Society of Applied Electromagnetics and Me

Self Cite

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show abstract

“…Research is ongoing to use magnetic suspension system in aeroplane landing system [7]. But none of the paper has given a comparative study of different designs of electromagnet for a simple magnetic suspension system [8]. This paper tries to give an optimized design of electromagnet for a future electromagnetic suspension system project.…”

Section: Introductionmentioning

confidence: 99%

An Optimized Design of Electromagnet and Float for a Magnetic Suspension System

Hasan¹,

Tushar²,

Rahman³

et al. 2019

Acta electron. Malays.

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An electromagnet and a float are needed to be designed for a magnetic suspension system. In this paper an optimized design of an electromagnet is being carried out based on minimum flux leakage and maximum amount of force that can be imparted on the float. This paper also compares different designs to find out advantages and disadvantages of these designs. Design starts from a simple and naïve design of electromagnet and then gradually improved until a satisfactory design is obtained. Different shapes of floats were also considered for an optimum design of float. Electromagnetic analysis is carried with commercial FEM (Finite Element Method) software to calculate different parameters of design. Later the result from the FEM software is verified by analytical calculation.

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Free-motion wind tunnel testing using a three-degree-of-freedom magnetic suspension system

Ueno,

Sato,

Takeda

et al. 2024

Exp Fluids

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Electromagnetic analysis in magnetic suspension mechanism of a wind tunnel for spinning body

Cited by 5 publications

References 2 publications

Design and Fabrication of an Enlarged Wind Tunnel System for Spinning Body Using Magnetic Suspension

Design and Fabrication of an Enlarged Wind Tunnel System for Spinning Body Using Magnetic Suspension

An Optimized Design of Electromagnet and Float for a Magnetic Suspension System

Free-motion wind tunnel testing using a three-degree-of-freedom magnetic suspension system

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