Open AccessTheoretical analysis of coincidence phenomenon and critical frequency determination of acoustic isolation panels
Author(s) -
L. Majkut
Publication year - 2018
Publication title -
autobusy
Language(s) - English
Resource type - Journals
eISSN - 2450-7725
pISSN - 1509-5878
DOI - 10.24136/atest.2018.449
Subject(s) - coincidence , critical frequency , isotropy , acoustics , excitation , low frequency , physics , materials science , optics , quantum mechanics , medicine , ionosphere , alternative medicine , pathology , astronomy
Critical and coincidence frequencies of panels are important in studying their behaviour under acoustic excitation Expressions for critical and coincidence frequencies of thin and thick homogeous isotropic panels are derived. Characteristics of critical frequency values in function of panel thickness for five different construction materials are shown.