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142 - Press Fit Analysis of a Divided Core
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Module:DS,DP,LS |
2011-02-28 |
Motors used in electric power steering are constructed by using a divided
stator core to miniaturize the motor and generate higher output. The press-fitting
stress needs to be accounted for in the iron loss analysis because the
stress caused by press-fitting is known to increase the iron losses when
magnetic steel sheets are used for a divided stator core that has a frame
with press fitting.This note presents the use of a structural analysis
and magnetic field analysis to obtain the iron loss density of a IPM motor
that has no-load with and without the stress by simulating the stress caused
by the press fit core and frame with the press fit condition.
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31 - Iron Loss Analysis of an SPM Motor Including the Effect of Press-fitting
Stress
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Module:DS,DP,LS |
2011-03-31 |
The laminated structure of the core can be maintained by press fitting or shrink fitting. When a magnetic steel sheet is used for the core of a motor, the stress caused by press fitting is known to affect the increase of iron loss. So, the press-fitting stress needs to be taken into account in iron loss analysis.
This example presents the use of a structural analysis and magnetic field analysis to obtain the iron loss density of an SPM motor with and without press-fitting stress.
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21 - Iron Loss Analysis of an SPM Motor Including the Effect of Shrink
Fitting
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Module:DS,DP,LS |
2011-01-17 |
Shrink fitting is a procedure in which heat is used to make a very strong
joint between two pieces of metal such as frame and stator. In this case,
the stator is inserted into the frame by extending the radius of the frame
using heat. The stress caused by shrink fitting is known to affect the
iron loss and magnetic circuit. So, it is important to include the effect
of thermal stress in iron loss analysis and magnetic field analysis. This
note presents the use of structural analysis and magnetic field analysis
to obtain iron loss density of an SPM Motor by taking into account the
stress caused by shrink fitting.
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