| Issue |
MATEC Web Conf.
Volume 298, 2019
International Conference on Modern Trends in Manufacturing Technologies and Equipment: Mechanical Engineering and Materials Science (ICMTMTE 2019)
|
|
|---|---|---|
| Article Number | 00055 | |
| Number of page(s) | 7 | |
| DOI | https://doi.org/10.1051/matecconf/201929800055 | |
| Published online | 18 November 2019 | |
Of the matrics of the equilibrium of the rod formation system based on the principle the duality of the problems of structures mechanics
Penza State University of Architecture and Construction, Russia
* Corresponding author: monakhovnn@mail.ru
The formation of the equilibrium matrix of the core system in the matrix form is based on the use of the mechanical model of the system obtained by its discretization. The topological structure of the model is set using the graph and the accompanying incidence matrix. The matrix transformation of the vector of nodal displacements in combination with the extended incidence matrix allows determining the absolute elongations and distortions of each finite element. The composition of only two matrices (matrix of incidence and lengths of elements) and the skew vector leads to a geometric matrix characterizing the dependence of concentrated bending deformations in the calculated cross sections of the core system from the nodal displacements for a given load. Based on the duality principle, by transposing the geometric matrix, the equilibrium equation of the core system is derived in matrix form.
© The Authors, published by EDP Sciences, 2019
This is an Open Access article distributed under the terms of the Creative Commons Attribution License 4.0, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
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