IS SPACE AN ABSTRACT CONCEPT OR MATERIAL REALITY?

Представлен критический анализ различных вариантов субстанциальной и реляционной концепций пространства. Предложена собственная концепция пространства, названная абстрактно-математической или реляционной в широком смысле. В соответствии с этой концепцией все другие, адекватные, на наш взгляд, концепции, включая эмпирические и геометрические, сознательно или интуитивно «привязаны» к некоторому множеству, между элементами которого заданы определенные отношения, например метрические. Сделан и обоснован вывод о том, что интерпретации пространства как некоторой материальной или нематериальной деформируемой среды являются физически неадекватными. A critical analysis is presented of various variants of the substantial and relational concepts of space and time. Our own concept of space, called abstract-mathematical or relational in a broad sense, is proposed. In accordance with this concept, all other adequate, in our opinion, ones, including empirical and geometric, are consciously or intuitively «tied» to a certain set, between the elements of which some relations are prescribed, for example metric ones. A conclusion is made and substantiated that any interpretation of space as some material or non-material deformable medium is physically inadequate.

Modelling of an explosion impact on a deformable medium with rigid inclusions with quasiconformal mappings methods

The explosive process influence on the environment with the existing impenetrable fixed inclusion is investigated by quasiconformal mappings numerical methods and step-by-step parameterization of the environment and the process characteristics numerical methods. The boundaries of the crater formed by the explosion, pressed and undisturbed areas of soil are determined. Numerical experiments were performed on the basis of the developed algorithm

Theoretical determination of the distribution of forces and the size of the boundaries of the contact in the interaction of the deformable drive wheel with the soil

The article presents the results of an analytical determination of the forces distribution along the length of the contact curve of the driving deformable wheel on the deformable supporting surface, and also are defined the boundaries of the contact zone. The case in a flat statement of the problem is considered. The supporting surface and the surface of the deformable wheel are represented as a continuous deformable medium. The shape of the wheel in the contact zone is represented by the circle equation, which in the contact zone is expanded in a Macloran-series. By using conditions at the boundaries of the contact zone, a system of equations is obtained from which the sizes of the contact zone are determined. The solution of these equations allows one to find expressions of the sizes of the contact zone of the deformable wheel with the deformable surface, depending on the mechanical properties of the wheel materials and the supporting surface, from the geometric dimensions of the wheel and from the loads applied to it. In addition, the results of the studies allow us to determine the analytical expression of the coefficient of rolling resistance of a deformable wheel over a deformable surface, depending on their mechanical properties, geometric parameters, and the loads applied to it.

Характеристики автоволн локализованной пластичности металлов и параметр Дебая

The dependence of the characteristics of localized plasticity autowaves on the Debye characteristic parameter (Debye temperature) for nineteen different metals is analyzed. It is shown that this experimentally established linear relationship is a consequence of the previously introduced elastoplastic deformation invariant, which relates the parameters of elastic and plastic processes in a deformable medium.