| Summary: | The paper presents the concept of a novel stress wave method (SWM) for determining
the dynamic reaction of structural elements of an explosion-proof valve. The stress wave method
is an original solution to the issue of the dynamic reaction of structural elements and systems. It
is particularly recommended in the case of intensive percussive or explosive impacts. The method
was developed by the author of works [14, 15]. It reflects the wave nature of stress development. The
paper presents the origin, assumptions and the basic dependencies of the method. The characteristics
of the method are illustrated by means of solutions to issues closely related to the requirements for
testing the resistance of shelter explosion-proof valves. The description also includes
a comparison of the calculation results with the results obtained by the finite element method (FEM)
and the results of experimental tests. The possibility of significant differences between the compared
solutions has been shown. It should be noted that geometric attenuation, reflections and interference
of waves are natural for the dynamic reaction of an element and therefore for wave processes. These
phenomena can significantly affect the distribution of the parameters of the sought dynamic reaction
in space and time. The proposed method of analysis is distinguished by high accuracy of calculations.
Keywords: stress waves, structural element vibrations, discrete models, differential solution, explosion-
proof valve
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