Effect of onboard PM position on the magnetic force and stiffness performance of multi-seeded YBCO

Öztürk, K.; Kabaer, Mehmet; Abdioglu, M.

doi:10.1016/j.jallcom.2015.04.169

Cited by 18 publications

(5 citation statements)

References 15 publications

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“…The MLF and GF between the YBCO samples and the conventional permanent magnetic guideway (PMG) were measured via three axes magnetic force measurement system in our laboratory. The detailed properties of the system and measurement procedures can be found in our previous studies 31,32 . The MLF measurements were done in different cooling heights (CH) of 10, 20, and 75 mm while the GF measurements were done in CH = 5 and 10 mm at the working height (WH) of 10 mm.…”

Section: Methodsmentioning

confidence: 99%

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Magnetic levitation force and trapped field properties of multiseeded YBCO with triangular arrangement of seeds

Abdioglu

Güner

Öztürk

et al. 2021

Int J Applied Ceramic Tech

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Although there are studies in literature using different number of seeds with different arrangements, especially line and rectangular, it is seen that there is no detailed study handling the levitation force together with trapped field properties of triangular arrangement of seed in YBCO. Therefore, to further investigate the magnetic properties of seeded YBCO superconductors, we have fabricated cylindrical YBCO (YBa2Cu3O7) superconductors with triangular arrangement of the seeds with different seed distances. Maximum levitation force values were obtained as 39.4 N and 57.1 N, while the maximum guidance force values were obtained as −4.6 N, and −8.7 N, respectively, with single‐seeded and triangular‐seeded samples with seed distance of 14 mm. It was determined that the trapped field, levitation force, and guidance force firstly decreased from the single‐seeded sample to the triangular‐seeded sample with small seed distance and then increased with increasing seed distance. Increased field trapping and levitation force performances in the triangular‐seeded samples with suitable seed distance indicate that the triangular arrangement of seeds is an eligible method to produce larger dimension YBCO samples with bigger shielding current radius and bigger averaged trapped field values.

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Section: Methodsmentioning

confidence: 99%

“…The detailed properties of the system and measurement procedures can be found in our previous studies. 31,32 The MLF measurements were done in different cooling heights (CH) of 10, 20, and 75 mm while the GF measurements were done in CH =…”

Section: Measurement Proceduresmentioning

confidence: 99%

Magnetic levitation force and trapped field properties of multiseeded YBCO with triangular arrangement of seeds

Abdioglu

Güner

Öztürk

et al. 2021

Int J Applied Ceramic Tech

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show abstract

“…Consequently, the traditional harmonic model is extended effectively. Compared with the finite element method and the magnetic charge method [18][19][20], the derived model provides a fast analytical calculation method for the magnet arrays with different magnetisation intensity and height.…”

Section: Magnet Array Using Permanent Magnets With Different Magnetismentioning

confidence: 99%

Magnet array of planar motor using permanent magnets with different magnetisation intensity and height

Wang

Chen

Zheng

et al. 2020

IET Electric Power Applications

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Planar motor is used as an actuator to directly produce multi-degree long stroke, high speed, and high precision movement. Its performance mainly depends on the topology and design of magnet array. In response to the rising trend of structural complexity, this study presents a novel easy-to-manufacture magnet array using permanent magnets with different magnetisation intensity and height. First, the flux density distribution of magnet array with different magnetisation intensity is derived by the Fourier analysis and the scalar magnetic potential equation. Then, the magnetic field model of magnet array using permanent magnets with different magnetisation intensity and height is obtained by the superposition method. Afterwards, the magnet array is raised and optimised based on the derived model. Calculations show that the high-order harmonics are significantly reduced. At last, the proposed analytical modelling method and magnet array are verified with experiments.

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“…18,19,22 Different studies have been performed to enhance the superconducting material properties in addition to the size of the bulk REBCO, such as using a cylindrical 23,24 or pyramid-like 25 buffer layer between the seed and the main material. Notwithstanding the numerous number of studies done so far, the most commonly used bulk YBCO in Maglev studies of laboratory scale 14,15,26 or real-scale prototypes 5,27 are the ones fabricated by ATZ GmbH 8,22,[28][29][30] in a rectangular prism shape with three seeds.…”

Section: Introductionmentioning

confidence: 99%

Enhancing magnetic levitation and guidance force and weight efficiency of high‐temperature superconducting maglev systems by using sliced bulk YBCO

Abdioglu

Öztürk

Güner

et al. 2023

Int J Applied Ceramic Tech

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We aimed to enhance the magnetic force efficiency of Maglev systems without increasing total weight. For this aim, we divided YBCO bulks into three slices horizontally to utilize the YBCO‐permanent magnetic guideway (PMG) interaction surface as much as possible. We used whole YBCO above PMGs with different magnetic pole directions (PMG‐A and PMG‐B) in two lying positions of transversal and longitudinal and investigated levitation and guidance force performances. It is determined that levitation and guidance forces by using YBCO in transversal lying mode are bigger compared to the longitudinal mode. For sliced YBCO, the maximum levitation force increased by 69% and 78%, while the guidance force enhancements are determined as 212% and 91%, compared to the whole YBCO above PMG‐A and PMG‐B, respectively. The levitation and guidance force density with respect to the total mass of unit a set of slices YBCO increased by 92% and 106%, respectively, compared to the whole YBCO above PMG‐B in transversal mode. Since the higher levitation force and the lower total weight of the onboard unit are important parameters in point of the energy efficiency in Maglev and other levitation applications, the result of this study supplies useful data for the engineers and industrial partners.

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Effect of onboard PM position on the magnetic force and stiffness performance of multi-seeded YBCO

Cited by 18 publications

References 15 publications

Magnetic levitation force and trapped field properties of multiseeded YBCO with triangular arrangement of seeds

Magnetic levitation force and trapped field properties of multiseeded YBCO with triangular arrangement of seeds

Magnet array of planar motor using permanent magnets with different magnetisation intensity and height

Enhancing magnetic levitation and guidance force and weight efficiency of high‐temperature superconducting maglev systems by using sliced bulk YBCO

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