Розглянуто методи моделювання і аналізу просторово-часових деформацій сенсорних мереж. Розглянуто властивості міри близькості отриманих від сенсорної мережі зображень при використанні методу компенсації інформаційних потоків дозволяють зменшити функціональне навантаження на підсистему класифікації.
Shafts of various sizes are used in various fields of mechanical engineering, automotive, marine and aerospace industries to transmit torque according to requirements. In this paper, we simulate and analyse the modal and harmonic response of a shaft on which a satellite of a planetary gearbox for an elbow orthosis is mounted. The orthoses are used during the rehabilitation of patients in the postoperative period or during the regeneration of lost limb functions. Steel 45 and PLA polylactide were used in the shaft modelling.
Polylactide composite materials with organic filler-modifier starch, inorganic filler -calcium carbonate and plasticizer - epoxidized soybean oil for 3D printing have been developed. On the basis of the modular deformation method of calculation the elastic-plastic and deformation properties of the developed modified polylactide materials are determined. The change of modulus of deformation, modulus of elasticity, modulus of high elasticity depending on the composition of the composite is revealed.
Deformation processes in media with fractal structure have been studied. At present, research on the construction of mathematical methods and models of interconnected deformation-relaxation and heatmass transfer processes in environments with a fractal structure is at an early stage. There are a number of unsolved problems, in particular, the problem of correct and physically meaningful setting of initial and boundary conditions for nonlocal mathematical models of nonequilibrium processes in environments with fractal structure remains unsolved.
In this article, there are given the results of studies on the strength of steel-concrete bent elements, in which additional reinforcement was introduced at various levels of initial reinforcement and loading, as well as after unloading, and the beams were brought to destruction. The need for overhead cover reinforcement during the process of its exploitation appears not only in the course of reconstruction but also due to its physical aging that is caused by various factors.
Purpose. The aim of the investigation is optimization monitoring of spatial displacements by GNSS and selection of minimal intervals of GNSS observations with given accuracy parameters. Methodology. For simulate the monitoring process on a real object tested network GNSS vectors with different lengths were installed. The network consisted of 4 points where two-frequency GNSS receivers were installed.
A significant increase of the intensity of road and urban transport requires new approaches to its improvement, especially in areas with dense existing buildings. The solution of this problem may be improving by building new bridges, road junctions and estokads The article is devoted to studies of deformation and crack resistance, proposed by the authors, constructive solution with double-beams continuous span bridge for complex construction conditions.
Theoretical calculations and experimental studies of the influence of wear on the cutting process and the precision parameters of machining by hard alloys during milling are described in the article. The method of aerodynamic hardening is designed to increase the durability of tools, which are heterogeneous compositions of tungsten carbides, titanium and tantalum with cobalt ligature operating under severe process conditions with varying impact loads.
The processes of consolidation, deconsolidation, phase transitions and destructions in the terms of internal structures of the Earth аre studied on the base of non-linear theory of deformable solid bodies. It is shown that the loss of stability of equilibrium state can precede to the processes of deconsolidation, phase transitions and destructions on geometric form change (structural instability).
The results of long-term studies of landslide processes in the areas of operation of pumped storage power plant with the help of modern GNSS technologies are considered. The presence of deformation of the earth's surface, both in terms in plane and vertical, is revealed. Displacement of some points is a closed-return trajectory and not exceed a few millimeters. Another part of the points is characterized by the horizontal displacements with the presence of returning movements.