Improved analytical calculation of axial AMB by means of fringing estimation

Rura, David; Bárta, Jan

doi:10.1109/icem49940.2020.9270734

Cited by 2 publications

(2 citation statements)

References 7 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Accordingly, the zero-displacement bearing force of the HTMB can be calculated from equation (7) with B gp0 , B g0e , λ, and γ…”

Section: Load Capacity Of the Htmbmentioning

confidence: 99%

“…1 As a type of magnetic bearing (MB), TMB offers a number of advantages, such as, absence of mechanical contact, no requirement for lubrication, low power consumption, and active vibration suppression. 2,3 Therefore, it is being extensively used in the high-speed rotating machineries, such as flywheel energy storage systems, [4][5][6] high-speed motors, 7 turbo machinery, 8,9 and precision machine spindles. 10,11 In general, the TMBs are classified into three categories: active, passive, and hybrid TMBs.…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

A novel permanent magnet bias hybrid thrust magnetic bearing with extremely simple structure for high-speed rotating machinery

Wang

Liu

et al. 2021

Proceedings of the Institution of Mechanical Engineers, Part C:

View full text Add to dashboard Cite

This paper presents a novel permanent magnet (PM) bias hybrid thrust magnetic bearing (HTMB), which can be used to replace the traditional thrust magnetic bearings (TMBs) for high-speed rotating machinery. By adding two PM rings and by reducing the number of the control coils by half, this HTMB eliminates the bias current, reduces the number of amplifiers, and minimizes the magnetic bearing’s structure complexity and power consumption. The analytical modelling method of the HTMB is presented in this paper. Mathematical models for calculating the magnetic force capacity and the stiffnesses of this bearing are derived as simplified formulae, which can be used for the design, analysis, and control of this bearing. Electromechanical characteristics of the HTMB are analyzed, which is compared to the traditional TMB to demonstrate the advantages of the HTMB. The prototype of the HTMB is designed, analyzed, and fabricated, whereas, the 2-D FEM is used to verify the design and the analytical model. Finally, an experimental setup is constructed and tested. The analytical and experimental results indicate that the proposed novel topology of this HTMB is feasible and the presented analytical model is accurate.

show abstract

“…Accordingly, the zero-displacement bearing force of the HTMB can be calculated from equation (7) with B gp0 , B g0e , λ, and γ…”

Section: Load Capacity Of the Htmbmentioning

confidence: 99%