Permanent-magnet synchronous motors (PMSMs) have been widely used as the driving
core in electric vehicles due to the high power/torque density and high efficiency. Recent …

Electrical machines are important devices that convert electric energy into mechanical work
and are widely used in industry and people's life. Undesired vibrations are harmful to their …

This paper first derives the characteristics of radial electromagnetic force considering
different types of current harmonics. By using two-dimensional fast Fourier transform, the …

This paper aims to clarify global and local force harmonics and their effects on vibration in
permanent magnet (PM) synchronous machines. The local force includes both the tangential …

The electromagnetic radial force acting on the stator inner periphery will induce radial
vibration and acoustic noise in permanent magnet synchronous machines (PMSMs). The …

In this article, we analyze the vibration of the spoke-type permanent-magnet (PM) machine
with an asymmetric rotor considering the modulation effect of the stator teeth. First, the …

Rotor-step straight skewing is a common method to reduce electromagnetic vibration of
permanent magnet synchronous motors (PMSMs). However, the difference of the radial …

A new optimum structural design is presented here in order to shift the natural frequencies of
the stator structure in brushless DC motor to the highest values at different mode shapes and …

We present an optimization methodology to reduce magnetically induced vibrations of a
spoke-type interior permanent magnet (IPM) motor that we developed by performing …

This paper investigates the effect of the notches in stator teeth on the radial force and
vibration of fractional slot concentrated winding permanent magnet machines. The radial …