Structural Integrity Analysis of a Two-Pole Synchronous Reluctance Machine with Non-circular Shaft
Özet
This paper investigates the structural strength of
a 6-inch diameter, two-pole, 4 kW line start synchronous
reluctance machine (LS-SynRM) designed with a new noncircular shaft structure that serves as a pump motor. Flux paths
on the rotor are widened while narrowing down the shaft of the
motor on the q-axis to improve the motor efficiency. By using
this method, a wider path is created for the flux in the d-axis. As
a result, the inductance in the d-axis, the ratio of inductance
between the d-axis and q-axis (referred to as saliency ratio), and
the difference in inductance between the d-axis and q-axis are
all amplified. To evaluate the structural strength of the machine,
a series of analyses are conducted, including modal, harmonic,
and static examination on the rotor using ANSYS Structural.
The findings indicate that to prevent redundant deformations
and undesirable vibrations because of resonance, the maximum
safe limit for shaft size reduction is determined as 8 mm
