Application of Metamaterial in Vibration Suppression of Rotor System

Focusing on the problem of narrow frequency band and large size of vibration suppression devices for rotor systems, metamaterials are applied in vibration suppression of rotor system. Firstly, the fundamental design methods of vibration isolators and absorbers are introduced. Then, the inertial method to increase the vibration suppress ability is introduced, which can overcome the overlarge size and weight problem of traditional isolators and absorbers. An experimental platform is built and carried out to verify the torsional vibration isolation performance of the proposed meta-shaft. According to the research, the designed meta-shaft is capable of achieving torsional vibration attenuation in the low frequency range of 25 Hz–200 Hz by adjusting the mass of the inerter, with a maximum vibration isolation efficiency of 88%.