Dynamic Characteristics of Electromagnetic Damper under Impact Loading

The electromagnetic damper has the inherent characteristic of "Constant damping-Constant power". In order to explore the working characteristic of electromagnetic damper under impact environment, based on the single degree of freedom system vibration model, the damping response model of electromagnetic damper under impact load is established, analyzed the matching relation between impact properties and damping output characteristic. The simulation model was built by Matlab/Simulink for analysis, and put forward the adjust method of damping stable output. The result of research show that, because of the high speed on demagnetization effect, electromagnetic damper in the process of braking the impact load, the phenomenon of damping sag will appear in the constant damping output platform, and the braking characteristic can be adjusted by load matching coefficient and attenuation coefficient.