Analytical calculation of the deflection of an externally statically indeterminate lattice trussстатья

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1. matecconf_gccets2018_05027.pdf matecconf_gccets2018_05027.pdf 521,9 КБ 2 мая 2019 [KirsanovMN]

[1] Kirsanov M., Komerzan E., Sviridenko O. Analytical calculation of the deflection of an externally statically indeterminate lattice truss // MATEC Web of Conferences. — 2019. — Vol. 265, no. 0527. A scheme of a statically definable truss with additional supports is proposed. Derive formulas for the dependence of the deflection of the truss against the number of panels for three types of symmetrical loads. It is shown that for definite numbers of panels the determinant of the system of equations for the equilibrium of nodes degenerates. This indicates an instant changeability of the structure. To generalize particular solutions to an arbitrary number of panels, the induction method is applied. For this purpose, in the computer mathematics system Maple linear recurrence equations are constructed for the terms of a sequence of coefficients from individual solutions. The graphs of the dependences obtained indicate a nonmonotonic character of the solutions found and the possibility of optimizing the design by choosing the number of panels. [ DOI ]

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