Design and research of magnetically levitated testbed with composite superconductor bearing for micro thrust measurement

Fawzi DERKAOUI; Zhaoxin LIU (刘朝鑫); Wenjiang YANG (杨文将); Yu QIN (秦瑀); Kunlong WU (吴坤隆); Peng ZHAO (赵鹏); Juzhuang YAN (闫炬壮); Junxue REN (任军学); Haibin TANG (汤海滨)

doi:10.1088/2058-6272/ac1eec

Plasma Science and Technology > 2021 > 23(10): 104010. > DOI: 10.1088/2058-6272/ac1eec

Fawzi DERKAOUI, Zhaoxin LIU (刘朝鑫), Wenjiang YANG (杨文将), Yu QIN (秦瑀), Kunlong WU (吴坤隆), Peng ZHAO (赵鹏), Juzhuang YAN (闫炬壮), Junxue REN (任军学), Haibin TANG (汤海滨). Design and research of magnetically levitated testbed with composite superconductor bearing for micro thrust measurement[J]. Plasma Science and Technology, 2021, 23(10): 104010. DOI: 10.1088/2058-6272/ac1eec

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Design and research of magnetically levitated testbed with composite superconductor bearing for micro thrust measurement

¹ School of Astronautics, Beihang University, Beijing 100191, People's Republic of China
² School of Power Engineering, Liuzhou Railway Vocational Technical College, Liuzhou 545616, People's Republic of China
³ School of Space and Environment, Beihang University, Beijing 100191, People's Republic of China

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Received Date: March 24, 2021
Revised Date: August 17, 2021
Accepted Date: August 17, 2021

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Abstract

Abstract

A high temperature superconducting (HTS) magnetically levitated testbed has been developed for the steady thrust measurement of miniature ion electrospray thruster. The structure of the testbed mainly consists of an HTS composite bearing, a magnetic shielding plate, an active electromagnetic brake and a laser displacement sensor. The steady thrust is described as a function of the equilibrium angle displacement of the floating frame. Furthermore, the mechanical behaviors of HTS composite bearing were studied via finite element simulation and experiments, which include the load capacity, levitation stiffness and background noise. The results show that the thrust testbed can keep in low noise and have a load capacity up to 4 kg. According to the ignition testing of the electrospray thruster, the thrust force of 25.2 $\mu {\rm{N}}$ was measured by the testbed, which is close to the design value of miniature ion electrospray thruster.
- micro-force measurement,
- maglev testbed,
- composite HTS bearing

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References (16)

References

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