Učenye Zapiski Komsomolʹskogo-na-Amure Gosudarstvennogo Tehničeskogo Universiteta (Sep 2016)

VIRTUAL MASS EFFECT ON CONSTRAINED OSCILLATION OF OPEN SHELLS

  • Mr. Oleg Ye. Sysoyev  Doctor of Engineering, Professor, the Civil construction and Architecture Department, Dean of the Cadastre and Civil construction faculty, Komsomolsk-on-Amur State Technical University (Russia, Komsomolsk-on-Amur). E-mail: [email protected].,
  • Mr. Artyom Yu. Dobryshkin,
  • Mr. Nein Sit Naing

DOI
https://doi.org/10.17084/2016.III-1(27).15
Journal volume & issue
Vol. 1, no. 1
pp. 110 – 116

Abstract

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In the laboratory of constructions of Komsomolsk-on-Amur State Technical University (KnAGTU) an experiment has been carried on. The aim of the experiment was to identify patterns of influence of magnitude of fluctuations in the virtual mass on constrained oscillation of open shells. Constrained oscillation of curved and open-shell carrying the virtual mass was measured with the help of induction accelerometers. Steel shell is pin supported along the edges, rectangular in the plan. Pin supported open shells along both sides, as the most frequently used in the construction have not yet been investigated. The calculation was made based on the general equation of oscillation of a shell, as well as Donnell - Mushtari - Vlasov equations. In the theoretical calculation, assumptions about the flatness were not taken into account. But it seemed that the magnitude of the stresses from bending moments are comparable in magnitude to the stress of the effort. In consequence, substantial increase in the differentiation was obtained. As a result, values of theoretical constrained oscillation of a shell were obtained. We compared the theoretical and analytical data.

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