Design and Analysis of an Interior Permanent Magnet Synchronous Motor for a Traction Drive Using Multiobjective Optimization

Figure 22

Modal frequency of the stator radial vibration. (a) 2^rd mode 1108 Hz; (b) 3^rd mode 2708 Hz; (c) 4^rd mode 4400 Hz; (d) 5^rd mode 5824 Hz.

(a)

(b)

(c)

(d)