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Information × Registration Number 0222U002489, 0117U001850 , R & D reports Title Substantiation and application of computational methods for solving classical and applied problems popup.stage_title Head Demkiv Ihor Ivanovych, Доктор фізико-математичних наук Registration Date 13-02-2022 Organization Lviv Polytechnic National University popup.description2 The a posteriori method of error estimation and parallelization procedure for numerical solution of one class of problems of electronic optics are considered on the model example. Operator equations as a tool for generalizing different types of fractions, in particular, an abstract interpolation fraction of the Thiele type, have been studied. For the Sturm-Liouville problem, three-point difference schemes of high order of accuracy on an uneven grid are constructed, which are especially effective in finding eigenvalues and eigenfunctions. An iterative method of the correction defect for the acceleration of the rate of convergence of the implicit Euler method is used, which is almost the only effective method for numerically solving Cauchy singular problems. The proposed calculation formulas were used in the calculation and analysis of the distribution of the magnetic field in the magnetohard layer. A study of the action of a spring dynamic absorber with the use of two-way methods for calculating the physical quantities of the constructed model and animation. An elastic-plastic isotropic body weakened by a rectilinear crack directed along the abscissa axis under the action of stresses symmetrical with respect to its plane is investigated. The hydrogen concentration near the crack tip was determined. Calculation formulas were found, which were used to determine the physical quantities in the study of the spring vibration damper. Product Description popup.authors Bilushchak Halyna I Bilushchak Yuriy Ihorovych Baranetskyy Yaroslav O Berehova Halyna I Buhrii Oleh Mykolayovych Budz Ihor S Hlynskyy Yaroslav M Hoblyk Nadiia M Hoshko Zinoviya O Kunynets Andriy Volodymyrovych Magerovska Tatyana Valerivna Makhorkin Mykola Igorovych Mentynskyy Serhyy M Noha Yuriy M Obshta Anatoliy Feliksovych Paholok Bohdan B Peleh Yaroslav M Pukach Petro Ya Stolyarchuk Roksolana R Filevych Petro V Fil' Bohdan M Khimka Ulyana T Chernukha Olʹha Yuriyivna popup.nrat_date 2022-03-09 Close