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  • Simulation of the field distribution in magnetic systems of electrical devices with the use of non-linear multipoles

    The simulation of the magnetic field distribution in magnetic conductors of electrotechnical devices for the purpose of assessment of their characteristics in the operation modes is considered. The task has a form of the boundary value problem for the elliptic type equation in the ferromagnetic environment with nonlinear characteristics. We suggest using block elements in the form of arbitrary configured multipolar networks in the combination with nonlinear multangulars. The veber-ampere characteristics of the multipolar network are the result of a single solution of the boundary value problems for the multangulars forming block elements. The boundary value problems are solved using a complex finite element method, which provides direct solution for equations of constraints between magnetic strains and multipole fluxes. The nonlinearity of the characteristics is taken into account as a result of calculating the field distribution at the boundary of the multipoles by correcting the magnetic permeabilities of the block elements, which is performed iteratively.

    Keywords: electrotechnical system, magnetic circuit, boundary value problem, block element, multipolar, complex boundary element, conductivity matrix

  • Methods of formation of professional competence of students of the specialty 08.03.01 Construction

    the Basic meaning of the content of the article is to reveal the formation of professional competence of students of higher education construction professions on the example of a business game. Business game "facade" is the functional-architectural meeting ambitious designers" was held under the second course in the discipline "Construction materials". The essence of this method is that students demonstrate certain production situation, which is characterized by conditions and actions of its participants. The task is to find the best modern methods of construction technologies. As a rule, the production situation in construction occur on the object, in our game object – the building of the Palace of culture, which was commissioned 10 years ago. During the operation of the building facade cladding in some places, damaged, cracks, and loose tiles. It was necessary to find the right solution for the replacement of the cladding material, to previously conduct a survey and identify the cause of the damage. For this group of students was divided into subgroups and each defined role. Each of the groups in the course of a game functioned, however, all must understand by simulating the situation and content of the actions of other groups. The problem was the following, as a preliminary survey of the damage to the facade of the object (performed measurements, photos, samples provided to the facing surfaces of the facade), it was necessary to establish the cause of the damage and propose the most optimal, effective and meets all the architectural, technological, technical and economic requirements methods of eliminating damage.the new enterprises, redistribution of investments in interests of the organization and development of new production on available floor spaces. The most important organizational economic targets of a diversification of management are presented by innovative activity of the industrial enterprise.

    Keywords: ompetence, tudents, nhe business game, research, the industrial situation, building materials and products.