Physical and Chemical Geotechnologies

Purpose

To investigate the thermomechanical behavior of a thick three-layer cylindrical panel with rigidly clamped ends.

Methodology

The three-dimensional connected problem of resonance vibrations and dissipative heating of a thick three-layer nonelastic cylindrical panel is investigated for the temperature independent of the temperature of the mechanical and thermophysical properties of the material by the finite element method, under the action of harmonic over time uniform pressure.

Findings

By a finite element method a three-dimensional problem on the forced resonance vibrations and dissipative heating of a thick three–layer cylindrical panel with rigidly clamped ends is solved. The nonelastic material behavior is described by a conception of the complex characteristics. It is supposed that the mechanical and thermophysical material properties do not depend on a temperature. An influence of a structural inhomogeneity on the amplitude– and temperature–frequency characteristics, on the natural frequency, maximum deflection, maximum temperature and damping coefficient of the panel are investigated. The results of the calculations showed that the structural heterogeneity significantly influences the indicated dynamic characteristics.

Keywords: resonant vibrations, cylindrical panel, damping coefficient

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