Abstract ▼ AI-Helper

It is proposed to analyze the vibration of slab with MTMD and vibration-induced noise. Substructure synthesis is introduced to develope the interaction between the slab and MTMD which are defined in different space and acoustic power is obtained from the velocity field of slab. Numerical analysis is...

It is proposed to analyze the vibration of slab with MTMD and vibration-induced noise. Substructure synthesis is introduced to develope the interaction between the slab and MTMD which are defined in different space and acoustic power is obtained from the velocity field of slab. Numerical analysis is performed to show that the vibration and noise of slab can be reduced by MTMD. A living room of wall type apartment including the wall and MTMD is modeled and analyzed by FEM program Numerical analysis shows that the vibration and noise control effect is different depending on the location and mass ratio of MTMD. Futhermore, noise is more effectively reduced when the vibration of higher modes of slab are reduced rather than lower modes.