Lyudmila A. Korobova, Irina A. Matytsina, Vitaly A. Kalugin

Voronezh State University of Engineering Technologies

When studying the functioning of technological objects, it is impossible to create a real emergency situation that provides information about the presence of a defect. For this purpose, physical modeling of the air duct system was applied. The physical model is presented in the form of an experimental stand. The article provides a description of the installation, which allows you to monitor the functioning of a closed air duct system under various external influences: when changing the dynamic characteristics of the working environment; when various types of defects appear, etc. The installation also allows you to choose how these changes are recorded. Functionally, the experimental stand was created as close as possible to real conditions. To detect damage to the air circuit, integration of technical developments with the method of multiple signal classification (MUSIC) was performed. The developed stand opens up opportunities for practical experiments and direct obtaining of experimental data to identify defects in the air duct.

physical modeling, experimental stand, piping system, air duct, defect, acoustic emission