Abstract
In the paper, solutions for a thin-walled bimetallic pipeline are obtained. The frequencies of free oscillations are investigated, taking into account the internal working pressure, the longitudinal compressive force, and the elastic foundation. The solutions were obtained on the basis of a geometrically nonlinear version of the semi-momentum theory of cylindrical shells of the middle bend. The proposed calculations can be used in the nuclear power industry, aviation, and petrochemical industry.
Highlights
Double-layer steels belonging to the category of bimetals, having a base layer of structural steel and plating of corrosion-resistant, are a unique material combining the required mechanical properties and the necessary corrosion resistance
Based on the geometrically nonlinear variant of semi-momentum theory of cylindrical shells, the problem of determining the frequency of free oscillations of a thin-walled bimetallic pipeline of large diameter, which interacts with the elastic foundation, is solved
The solution takes into account the impact of the internal operating pressure, the geometric characteristics of the parameter of the longitudinal compressive force, and the influence of elastic resistance on the ground
Summary
Double-layer steels belonging to the category of bimetals, having a base layer of structural steel and plating of corrosion-resistant, are a unique material combining the required mechanical properties and the necessary corrosion resistance. Bimetallic pipelines have several advantages over single-layered steel, especially in terms of corrosion resistance. Such pipelines, as well as single-layer steel, can work under hazardous dynamic conditions. As well as single-layer steel, can work under hazardous dynamic conditions This issue is interesting and relevant for the study [1,2,3,4,5,6,7,8]
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