Open AccessOptimizing the centrally compressed step-variable stiffness rods
Author(s) -
G. I. Grebeniuk,
Е. С. Лукин,
E. Nagaitseva
Publication year - 2020
Publication title -
iop conference series. materials science and engineering
Language(s) - English
Resource type - Journals
eISSN - 1757-899X
pISSN - 1757-8981
DOI - 10.1088/1757-899x/962/2/022045
Subject(s) - maximization , rod , minification , stiffness , volume (thermodynamics) , work (physics) , variable (mathematics) , stability (learning theory) , durability , materials science , structural engineering , mathematical optimization , computer science , mathematics , composite material , engineering , mechanical engineering , mathematical analysis , physics , thermodynamics , medicine , alternative medicine , pathology , machine learning
The article deals with the optimization parameters of centrally compressed step-variable stiffness rods, with the material that is able to work both within and out of proportionality. The following algorithms are developed: the maximization algorithm of loading critical parameter at the given volume of the rod material, and the minimization algorithm of the rod material volume observing the restrictions on durability and stability, taking into account the own weight of the rod. The analysis of the optimization results is carried out and the recommendations on calculation and rod design are offered.