Research of sound insulation frequency response for a multilayer inhomogeneous wall structures

The object of research is the amplitude-frequency characteristic sound insulation multi-layer heterogeneous structures. One most problematic places calculation methodology, due to existence standards such as ISO, DBN, which have some differences between them, and software, methodology not fully known, copyright latter. Using modeling method in INSUL software complex, characteristics partition walls halls were obtained. On-site measurements carried out on a real identical simulated fence constructions presented by MULTIPLEX cinema DAFI shopping center Dnipro (Ukraine). completely unknown. According information from open sources, it can be concluded that linear used. according DBN B.1.1-31:2013. Data obtained theoretically, during modeling, experimentally are compared with each other. expediency taking into account results help when writing new for state standard or improving latter considered. Comparing characteristics, possible conclude complex accurate at high frequencies. This phenomenon may related inherent resonances existing partition, quality installation, equated setup error, lack possibility influencing construction process measurement object. A error occurs soundproof violently connected structures building, presence resonating technical elements hall (air ducts, metal stage seats, etc.). influential significantly small wavelength frequency 3000–8000 Hz. Therefore, conclusion, used development buildings.