The linear control method of internal resonance is studied for electromagnetic damping coupled suspension. The linear control dynamics model of electromagnetic damping coupling suspension is established, and obtained the nonlinear vibration control differential equation. The internal resonance and stability of the coupling suspension system are analyzed by using the multi-scale method. The amplitude frequency equation of the coupling suspension and damping circuit is obtained under linear control when the natural frequency of the mechanical suspension and damping circuit satisfies the internal resonant condition of 1:3. This study analyzed the influence of the control parameters on the resonance vibration characteristics of the electromagnetic damping suspension system. The simulation results show that the reasonable selection of displacement and velocity control parameters can reduce the nonlinear vibration of the suspension, and effectively reduce the amplitude of electromagnetic damping suspension vibration.
 

Electromagnetic damping suspension; Internal resonance; Linear control