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Calculation of centrifugal stress in four-pole switched-reluctance rotors

Calculation of centrifugal stress in four-pole switched-reluctance rotors

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An investigation of the stress distribution in a four-pole switched reluctance rotor operating at high speed is presented. Two-dimensional finite element analysis is employed over a wide range of rotor geometries and a series of generalised design guidelines are established to facilitate the rapid calculation of the peak rotor stress. The radial expansion and moment of inertia of the rotor are also calculated.

Inspec keywords: reluctance motors; rotors; machine theory; finite element analysis; stress effects

Other keywords: four-pole switched reluctance rotors; centrifugal stress calculation; 2-D finite element analysis; stress distribution; rotor geometries; peak rotor stress; moment of inertia; generalised design guidelines; radial expansion

Subjects: Finite element analysis; Synchronous machines

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