Open AccessMethod of Calculation Flexural Stiffness Over Natural Oscillations Frequencies
Author(s) -
Alexey M. Nesterenko,
G.A. STOLPOVSKIY,
M. Nesterenko
Publication year - 2018
Publication title -
archives of civil engineering
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.208
H-Index - 15
eISSN - 2300-3103
pISSN - 1230-2945
DOI - 10.2478/ace-2018-0046
Subject(s) - finite element method , stiffness , structural engineering , natural frequency , vibration , computation , moment of inertia , beam (structure) , software , bearing (navigation) , basis (linear algebra) , moment (physics) , computer science , engineering , algorithm , mathematics , acoustics , physics , geometry , quantum mechanics , artificial intelligence , programming language , classical mechanics
The actual load-bearing capacity of elements of a building system can be calculated by dynamic parameters, in particular by resonant frequency and compliance. The prerequisites for solving such a problem by the finite element method (FEM) are presented in the article. First, modern vibration tests demonstrate high accuracy in determination of these parameters, which reflects reliability of the diagnosis. Secondly, most modern computational complexes do not include a functional for calculating the load-bearing capacity of an element according to the input values of resonance frequencies. Thirdly, FEM is the basis for development of software tools for automating the computation process. The article presents the method for calculating flexural stiffness and moment of inertia of a beam construction system by its own frequencies. The method includes calculation algorithm realizing the finite element method.