The presented mathematical model is based on the use of the finite difference method. The model is implemented as a web application and allows users to explore the features of the solidification process and calculate the frequency of impulse actions. Using the model, the required frequencies for casting with a thickness of 7 mm were determined.
The application of mathematical modeling methods (with subsequent computer sales) in determining the parameters of the new equipment and the process of walking distance of rolling strips of hard alloys based on copper.
The solved problem is the ensuring of electromagnetic compatibility of an electric rolling stock and safety systems of train operation on the underground railway. The control method of change of electromagnetic compatibility conditions on the basis of an estimation of statistical characteristics of an electromagnetic situation in places of operation of trackside devices of rail chains is offered.
The various test methods for determining the mechanical properties of materials in a state of superplasticity were considered. The tension depends from the deformation and strain rate, the structural parameter and temperature. The rheology and mechanics of superplastic deformation were discusses. Methodology has been tested and gave good results when tested Ti alloys and constructing mathematical models commissioned by EADS (Airbus). Information about the method of testing and subsequent approximation of the mechanical properties is of great interest for the development of adequate forecasts materials forming by pressure.
The paper analyses the relevance and methodological basis of the hierarchical approach to the solution of direct and inverse tasks of state pricing policy in the electric power sector as a tool for investment planning and development management, including both the substantiation of the affordable level of prices and tariffs and the assessment of consequences of economic decisions of the state (as a market regulator) in application and modification of competitive and tariff-based pricing mechanisms. The paper includes the description of the required and forecasted revenues' comparative analysis method applied for the electric power sector, its segments and energy companies under the variation of regulator's deci- sions. Requirements to the modeling tools and input information for the financial analysis and forecasts are also defined.
In article construction principles, the basic advantages and properties of multifunctionalmodels of transport systems are described. Efficiency of use of similar models as the universal tool for carrying out of various researches is shown.