RELATIONSHIP BETWEEN THE MAXIMUM DEFLECTION AND NATURAL VIBRATION FREQUENCY IN A FIVE-LAYER CLT PANEL WITH CHANGING THE PITCH OF LAMELLAE IN TRANSVERSE LAYERS

The present study examines the relationship between the maximum deflection and natural vibration frequency in a five-layer CLT panel under varying board spacing in the transverse layers under different structural boundary conditions. For the study, a computational finite element model in the form of a composite plate with orthotropic properties of the layers has been created in the SCAD++ computational complex. The basis for the study is the regularity established for isotropic plates by V.I. Korobko, describing the relationship between the maximum deflection W0 and the frequency of natural vibrations ω of the structure. It is expressed through the proportionality coefficient K. The results of the study are the values of the maximum deflection and frequency of natural vi-brations in a five-layer CLT panel at different values of the pitch of lamellas in the transverse layers, as well as the values of the proportionality coefficient K obtained by calculation. The established relationship through the calculated value of the coefficient K is compared with its analytical value for different boundary conditions. It is established that the deviation of the calculated value of the coefficient does not exceed 2%.