Wyniki wyszukiwania - BazTech

Ograniczanie wyników

Znaleziono wyników: 1

Liczba wyników na stronie

Wyniki wyszukiwania

Sortuj według:

Ogranicz wyniki do:

Acoustical Properties Modelling of the Souble Ptfe System by the Use Od Sea Method

Iwaniec M., Panuszka R., Wiciak J., Geissler P.

Molecular and Quantum Acoustics

2002

Vol. 23

175-186

The recent yoears have whitnessed a rapid developement of new construcion materials, some of these showing anisotropic properties, while the constructions are light and very strong. These new materials appeared in the last few years, hence it is necessary to determine the acoustical parameters of such constructions. This study is concered with calculations of sound reduction index of three-layered systems made from thin, transparent polyurethane foil. Experimental tests were run for created numerical models and experimental results are compared with numerical calculations.