Reducing Floor Impact Vibration and Sound Using a Momentum Exchange Impact Damper

Lovely SON, Makoto KAWACHI, Hiroshi MATSUHISA, Hideo UTSUNO
2007 Journal of System Design and Dynamics  
This paper deals with reducing floor impact vibration and sound by using a momentum exchange impact damper. The impact damper consists of a spring and a mass that is contact with the floor. When a falling object collides with the floor, the floor interacts with the damper mass, and the momentum of the falling object is transferred to the damper. In this works a computational model is formulated to simulate dynamic floor vibration induced by impact. The floor vibration is simulated for various
more » ... lated for various sized damper masses. A proof-of-concept experimental apparatus was fabricated to represent a floor with an impact damper. This example system consists of an acrylic plate, a ball for falling object, and an impact damper. A comparison between simulated and experimental results were in good agreement in suggesting that the proposed impact damper is effective at reducing floor impact vibration and sound by 25% and 63%, respectively.
doi:10.1299/jsdd.1.14 fatcat:nebwrif2mfeuzkhcyx42yka4uq