The study of the stiffness coefficient of the seamdepending on the quantity of symmetrically located shift onnection-sin an oval two-layerplate

ISSN: 1451-4117

E-ISSN: 1821-3197

DOI:10.5937/jaes15-15449

This is an open access article distributed under the CC BY-NC-ND 4.0 terms and conditions.

Volume 15 article 474 pages: 474 - 479

The paper considers a two-layer isotropic plate on pliable connections, for which the theory of calculation of composite plates by A.R.Rzhanitsinwas adopted. With the help of bending moments Mx(My), the numerical stiffness coefficient of the seam is calculated. The numerical basic studies were carried out on an oval two-layered plate in the case of a rigid and hinged support of the plate along the contour. It proved that the stiffness coefficient of the seam ξ depends on the main coefficient after the hard oscillation frequency ω. The authors constructed the graph of the change of the natural oscillation frequency (ω) and the graph of the change of the stiffness coefficientof the seam (ξ) on the number of shift connections (nss./ne).

Rzhanitsyn A. (1976) [Calculation of composite
plates with absolutely tight cross couplings]. Researches
on the theory of constructions, issue XXII,
M.: Stroyizdat, pp. 120-133. (in Russian)

Rzhanitsyn A. (1986) [Composite rods and plates].
M.: Stroyizdat, 316 p. (in Russian)

Kalmanok A. (1950) [Construction mechanics of
plates]. M.: Mashstroyizdat, 303 p. (in Russian)

Shaposhnikov N. (1968) [Calculation of plates on a
bend according to the finite-element method]. Works
of MITE, issue 250, pp. 134 – 144. (in Russian)

Turkov A.V., Marfi n K.V. (2012) [Interrelation of maximum
deflections and natural oscillation frequencies
of composite square isotropic plates depending on
the number of symmetrically located shift connections].
Stroitel'stvoirekonstrukcija [Construction and
Reconstruction], no 2, pp. 44-48. (in Russian)

Turkov A.V., Marfi n K.V. (2012) [Determination of the
coefficient of the seam stiffness of a square compound
isotropic plate based on its fundamental oscillation frequency]. [Construction mechanics and calculation
of structures], no 5, pp. 38-44. (in Russian).

Turkov A.V., Marfi n K.V. (2013) [Determination of
the coefficient of the seam stiffness of a circular
composite isotropic plate at its fundamental frequency
of oscillations]. [Construction mechanics and calculation
of structures], no 4, pp. 58-62. (in Russian).

Turkov A.V., Marfi n K.V. (2013) Determination of the
coefficient of the seam stiffness of a circular composite
isotropic plate at its fundamental frequency of
oscillations. XVI International scientific and practical
conference of students, Master students, postgraduate
students and young scientists “Construction –
the formation of the environment of life”. Moscow,
24-26 April, pp. 187-190.

Turkov A., Karpova E. (2015) [The study of a seam
stiffness coefficient for a triangular composite isotropic
plate depending on its basic frequency of oscillations
in case of different rigidness of shift bindings].
Construction mechanics and calculation of constructions,
no. 2, pp. 66-69. (in Russian)

Karpova E.V. (2015) The study of the coefficient of
the seam stiffness of composite triangular isotropic
plates, depending on the number of symmetrically
located shift connections. Collected Works of the
Eighteenth International Interuniversity Scientific
and Practical Conference of Stu-dents, Master Students
and Young Scientists. Moscow, April 22-24,
pp. 238-242.

Semenov A., Gabitov A. (2005) [The SCAD project
computer system in educational process. Part I.
Static calculation]. M.: ASV publishing house, 152 p.
(in Russian)