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

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 t...

Full description

Saved in:
Bibliographic Details
Published inJournal of System Design and Dynamics Vol. 1; no. 1; pp. 14 - 26
Main Authors SON, Lovely, KAWACHI, Makoto, MATSUHISA, Hiroshi, UTSUNO, Hideo
Format Journal Article
LanguageEnglish
Published The Japan Society of Mechanical Engineers 2007
Subjects
Flooring System
Impact
Momentum Exchange
Sound
Vibration Control
Online AccessGet full text

Cover

More Information
Summary: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 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.
ISSN:1881-3046
1881-3046
DOI:10.1299/jsdd.1.14