A Strange Double-Deck Butterfly Chaotic Attractor from a Permanent Magnet Synchronous Motor with Smooth Air Gap: Numerical Analysis and Experimental Observation

Figure 2

Poincare sections: (a) 𝑧=0; (b) 𝑦=0; (c) 𝑥=0.

(a) 𝑥-𝑦 plane

(b) 𝑥-𝑧 plane

(c) 𝑦-𝑧 plane