ATTENUATION OF GROUND-BORNE BUILDING VIBRATIONS BY PARTICULATE MEDIA AT THE AUDIBLE FREQUENCIES
Ground-borne building vibration can be damped by articular media placed between the building structure and the vibration source. Particulate damper of uniform size has been shown to have characteristics of a bandpass filter for a range of mechanical vibration frequencies. The absorption-spectrum of particulate damper shows frequency bandgap, where mechanical vibration in that specific frequency range is strongly absorbed. We use samples of uniform size particulates medium, of fixed layer thickness. The samples are subjected to mechanical vibrations in the audible frequency range, 2 – 10 kHz to determine their absorption characteristics as a function of particle size, frequency, vibration amplitude, and Transmission direction. The goal of this study is to find vibration absorption spectrum as a function of particle size and ,required layer thickness that to mitigate external sources of building vibrations.
Tavossi, Hasson M. Ph.D.
"ATTENUATION OF GROUND-BORNE BUILDING VIBRATIONS BY PARTICULATE MEDIA AT THE AUDIBLE FREQUENCIES,"
Georgia Journal of Science, Vol. 76, No. 1, Article 6.
Available at: https://digitalcommons.gaacademy.org/gjs/vol76/iss1/6