UTILIZATION OF LOW COMPUTATIONAL COST TWO DIMENSIONAL ANALYTICAL EQUATIONS IN OPTIMIZATION OF MULTI RINGS PERMANENT MAGNET THRUST BEARINGS | Zendy

Siddappa I. Bekinal | Zendy; Mrityunjay Doddaman | Zendy; Nikhil D. Dravid | Zendy

Open Access

UTILIZATION OF LOW COMPUTATIONAL COST TWO DIMENSIONAL ANALYTICAL EQUATIONS IN OPTIMIZATION OF MULTI RINGS PERMANENT MAGNET THRUST BEARINGS

Author(s) -

Siddappa I. Bekinal,

Mrityunjay Doddaman,

Nikhil D. Dravid

Publication year - 2017

Publication title -

progress in electromagnetics research m

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.216

H-Index - 31

ISSN - 1937-8726

DOI - 10.2528/pierm17072007

Subject(s) - magnet , thrust , thrust bearing , mechanics , control theory (sociology) , computer science , physics , mechanical engineering , engineering , artificial intelligence , control (management)

Replacement of conventional bearings by passive magnetic bearings for high-speed applications, in terms of their performance will be effective, if the design is carried out by optimizing the geometrical dimensions in the given control volume. Present work deals with modification and utilization of two-dimensional (2D) analytical equations in optimization of multi rings permanent magnet (PM) thrust bearing configurations. Conventional and rotational magnetized direction (RMD) configurations are selected in optimizing the design variables for maximum bearing characteristics in a given volume with a constant aspect ratio. The design variables chosen for optimization are axial offset of rotor, number of rings, radial air thickness and inner diameter of the rotor and stator PM rings. MATLAB codes for solving 2D equations are developed in optimizing configuration variables. Further, optimized parameter values of the two configurations are compared. Finally, optimized results obtained using 2D and three-dimensional (3D) equations for the conventional configuration with same aspect ratio are compared, and conclusions are presented.

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