Design and Analysis of a Halbach Magnetized Magnetic Screw for Artificial Heart

Ji, Jinghua; Wang, Jiabin; Zhao, Wenxiang; Liu, Guohai; Zeng, Tao

doi:10.1109/tmag.2015.2436691

Cited by 54 publications

(12 citation statements)

References 13 publications

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“…Content may change prior to final publication. Increasing the thickness means that the amount of permanent magnet will increase when the other motor parameters remain unchanged, so the average thrust of motor will continue to increase [17]. In this paper, the thrust characteristics of DPT-PMSLM are studied by changing the ring width and the external diameter of permanent magnet.…”

Section: B Thrust Characteristicsmentioning

confidence: 99%

Multi-Objective Optimization of Double Primary Tubular Permanent Magnet Synchronous Linear Motor in Wide Temperature Range Environment Based on Pareto Front Method

Hao

Zhou

et al. 2020

IEEE Access

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In order to improve the thrust density of the electric actuator in aircraft, a double primary tubular permanent magnet synchronous linear motor is designed. By establishing the magnetic circuit model, the air gap magnetic density and thrust characteristics of outer and inner primary motors are analyzed. Considering that it works in the wide temperature range environment, a multi-objective optimization of motor is carried out. The surrogate model established by neural network is used to simplify the mathematical model of the motor. In order to improve the average thrust, restrain the thrust fluctuation and reduce the difference of output thrust under different environment temperatures, the Pareto front method is used to determine the target range of the optimal parameters, and gradually strengthen conditions, so as to obtain the optimal scheme of motor design.

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Section: B Thrust Characteristicsmentioning

confidence: 99%

Multi-Objective Optimization of Double Primary Tubular Permanent Magnet Synchronous Linear Motor in Wide Temperature Range Environment Based on Pareto Front Method

Hao

Zhou

et al. 2020

IEEE Access

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“…where a = N s gcd(N s , 2p) Accounting for equations (9) and (10), one can predict the back-EMF induced in the j th phase as follows:…”

Section: Phase Flux Linkages and Back-emfs Predictionmentioning

confidence: 99%

“…Of particular interest is the implementation of these machines in systems dedicated to energy harvesting [1], [2], automotive industry [3]- [5], space applications [6], [7], manufacturing process [8], health care [9], and so on.…”

Section: Introductionmentioning

confidence: 99%

“…He proposed a topology with a slot-pole combination (N s , 2p)= (18, 10) which is based on the one having (N s , 2p)=(9, 10) with a special winding configuration. Machines with (9,10) and (18,10) slot-pole combinations, sharing the same compactness and applied to free piston energy converter, have been the subject of a comparative study. It has been shown that the machine topology characterized by (18,10) slot-pole combination results in more than 7 times reduction in the eddy current loss in the mover magnets and supporting tube, and hence avoids the risk of PM demagnetization.…”

Section: Introductionmentioning

confidence: 99%

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Feature Investigation of a T-LPMSM Following the Selection of Its Slot-Pole Combination

Souissi

Abdennadher

Masmoudi

et al. 2017

IEEE Trans. on Ind. Applicat.

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This paper investigates the no-load and the on-load behaviour of a fractional-slot tubular-linear permanent magnet synchronous machine (T-LPMSM). The study is initiated by the selection of the machine slot-pole combination. To do so, a formulation of the air gap flux density, based on the solution of the magnetic potential vector equation in the air gap and in the PM regions, is derived. The electromagnetic model allows the prediction of the phase back-EMFs and of the cogging force. The effect of the slot-pole combination on these features is then considered to the aim of the optimal selection of the slot per pole and per phase. A case study considering the optimized slot per pole and per phase number is treated where the analyticallypredicted no-load features are validated by finite element analysis (FEA). The investigation is extended to the on-load characteristic which is predicted by FEA and is validated by experiments. Index Terms-fractional-slot tubular linear PM synchronous machines; air gap flux density distribution; no-load features; onload features; finite element analysis; experimental validation. 0093-9994 (c)

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“…They enable the realisation of linear electrical machine topologies, employing a rotary electrical machine as prime-mover, while achieving overall force densities significantly higher than those of conventional linear electrical machines. Therefore, they have been considered for many applications, such as wave energy converters [1], artificial hearts [2] and vehicle active suspension [3]. However, the practical realisation of the helical magnetisation distribution on the PM screw and/or the PM nut remains a challenge, and several methods using discrete PM pieces have been proposed [4,5].…”

Section: Introductionmentioning

confidence: 99%