Subharmonic Resonance of Van Der Pol Oscillator with Fractional-Order Derivative

Figure 7

Effects of the fractional coefficient 𝐾₁ on the response amplitudes in three response modes for 𝜎=1.

(a) 𝐹₁=200

(b) 𝐹₁=400

(c) 𝐹₁=500