DESIGNING AND DETAILING OF BUILDING SYSTEMS. MECHANICS IN CIVIL ENGINEERING

Influence of the contact area and value of the linearly distributed and concentrated mass with a circular cylindrical shell on the frequency and modes of natural oscillations

Vestnik MGSU 7/2014
  • Seregin Sergey Valer'evich - Komsomolsk on Amur State Technical University (KnAGTU) postgraduate student, Department of Construction and Architecture, Komsomolsk on Amur State Technical University (KnAGTU), 27 Lenina st, Komsomolsk on Amur, 681013, Russian Federation; (4217) 24-11-41; This e-mail address is being protected from spambots. You need JavaScript enabled to view it .

Pages 64-74

Finite element method shows the influence of the joining area and the relative value of linearly distributed mass along the angular coordinate and concentrated mass on natural oscillations and forms of a closed, circular cylindrical shell. We defined the ranges of concentrated and linearly distributed mass, added to a shell. The variation of the concentrated mass contact area markedly affects the lower frequency of the "shell-mass" system, in this connection, reducing the area of the shell leads to a marked decrease of the lowest split natural frequencies. The greatest of split natural frequencies decreases markedly with the increasing of contact area. More complex (mixed) oscillation modes of the "shell-mass" are detected. Dependence of the geometric characteristics of the shell with a concentrated mass of the lower split natural frequencies lower tone of oscillations, thus, revealing the dependence of frequencies on the length of the sheath. Linear contact area variation of the added mass and the circular coordinate has little effect on the oscillation frequency of the "shell-mass" system.

DOI: 10.22227/1997-0935.2014.7.64-74

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DYNAMIC SIMULATION OF CONCRETE DISTRIBUTOR OF SMALL SCALE

Vestnik MGSU 7/2017 Volume 12
  • Gorskikh E.S. - Siberian Federal University (SFU) , Siberian Federal University (SFU), 82 Svobodnyy prospect, Krasnoyarsk, 660041, Russian Federation.
  • Emelyanov R.T. - Siberian Federal University (SFU) , Siberian Federal University (SFU), 82 Svobodnyy prospect, Krasnoyarsk, 660041, Russian Federation.
  • Baranova G.P. - Siberian Federal University (SFU) , Siberian Federal University (SFU), 82 Svobodnyy prospect, Krasnoyarsk, 660041, Russian Federation.
  • Turysheva E.S. - Siberian Federal University (SFU) , Siberian Federal University (SFU), 82 Svobodnyy prospect, Krasnoyarsk, 660041, Russian Federation.
  • Osmanov E.I. - Siberian Federal University (SFU) , Siberian Federal University (SFU), 82 Svobodnyy prospect, Krasnoyarsk, 660041, Russian Federation.

Pages 774-779

The analysis of the vibromolding process for engineering products was given. The design experimental model of concrete distributor of small scale was developed. The results of research on dynamic simulation of machinery were set out.

DOI: 10.22227/1997-0935.2017.7.774-779

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