DOI: 10.5937/jaes0-28173
This is an open access article distributed under the CC BY 4.0
Volume 18 article 752 pages: 724 - 731
To improve the performance characteristics of modern aerospace systems, research is conducted and expensive
programs are being carried out to provide for reducing the weight of the aircraft structure through the use of new,
more promising materials, which include the so-called composite materials. Special attention is paid to the dynamic
behaviour of composite structures under the influence of high-intensity heat fluxes of various physical nature. The
paper considers the dynamic behaviour of composite structures of modern aerospace systems under the influence
of high-intensity heat fluxes. As an example, the axisymmetric transverse vibrations of a composite circular plate
connected to an elastic base, excited by thermal shock, are investigated. The plate material is modelled with a
three-layer composite. To describe the kinematics of an asymmetric plate pack, the hypotheses of a broken normal
are accepted. In thin bearing layers, Kirchhoff's hypotheses are valid. In a relatively thick lightweight core, the normal
does not change its length, remains rectilinear, but rotates through some additional angle. The base reaction is described
by the Winkler model. The statement of the initial-boundary value problem is given. The analytical solution is
obtained as a series expansion in terms of eigenfunctions. Its numerical parametric analysis is carried out.
The work was carried out with the financial support of the
state project of the Ministry of Education and Science
project code FSFF-2020-0017.
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