The numerical method of constructing the computational domain for tasks hydroelastic vibrations of structural elements

Abstract

The method of calculating the frequencies and vibration modes of slightly curved blade, based on replacing the spatial element by flat unit, was substantiated and improved. The method is based on the usage of boundary integral equations technique. The algorithm for numerical simulation to determine the liquid pressure on the using the projection method was proposed. The procedure of the workspace building for numerical integration in fluid-structure interaction problems for structural units was developed. The frequencies of blade vibrations have been determined by using  two approximate approaches.