his paper presents a methodology that can be used to create immersive virtual reality applications for teaching, conceptual modeling in the field of virtual reality, and specifically virtual prototyping, in various fields of application. The main stages of virtual reality application development are analyzed: planning; visualization; programming; user interface; testing, as well as tasks for the virtual assembly of parts, solved using a set of software and hardware visualization tools. The use of virtual reality technologies in the educational process can improve academic performance and at the same time reduce the number of errors and costs. Virtual learning experiences should not be about learning, so these learning environments need to be designed with a constructivist approach to reap the full benefits of learning.

A method for calculating prismatic forming cutters with a baseline is proposed. In contrast to the existing design methodology, depending on the shaped profile of the part, this technique systematizes the graphical calculation and allows you to apply a unified approach and easily automate the calculation. The purpose of developing a new calculation method is the possibility of automating and reducing the calculation time of prismatic shaped cutters with a baseline. A method of graphical and correctional analytical calculation of shaped incisors with a baseline has been developed. Graphic profiling of a prismatic shaped cutter consists of twelve stages. Correctional analytical profiling of a prismatic shaped cutter includes five steps. A feature of the proposed method for calculating shaped cutters with a baseline is the consistency and the possibility of automating calculations. Graphical profiling is simple, intuitive and easy to learn.

The article discusses the methods of artistic and figurative modeling of design design objects by creating a compositional form.Artistic and figurative modeling of the design design object with the formation of a compositional form is the main design method. It is based on the results of the analysis of utilitarian and aesthetic requests of certain groups of consumers, taking into account the conditions and environment of operation and acceptance of the object, as well as the functions of the object, structural and finishing materials and manufacturing technology of the product.Artistic and figurative modeling is the language of artistic design, a method and means of creating an artistic image, a multidimensional communicative phenomenon of information and emotional plan.An artistic image in costume design is a harmonious unity of the image of a person and a costume in a certain environment.A new approach to the process of creating an artistic image in the context of the associative component, the conceptual component, as well as fashion trends, allows you to structure the modeling method, work productively with various important nuances of the conceptual and figurative solution of products.Thus, a new approach to the process of creating an artistic image allows you to structure the modeling method, work productively to obtain a conceptual and figurative solution of the product.

This article evaluates the quality of a mobile operator, the technical parameters of its mobile network, the parameters of voice mobile communication and the quality of the Internet connection. The indicators for assessing the effectiveness of cellular communications were studied and analyzed, the main indicators for analyzing and assessing the effectiveness of the operator's work were determined, and a fuzzy model was developed to assess the effectiveness of the quality of the cellular operator's work. The fuzzy assessment model was tested and the results were analyzed. Fuzzy set theory has been used to create a model that provides an overview of the performance of a mobile operator and its ability to compare with competitors. In the developed model, the assessment of the quality of communication is objective in relation to the time of obtaining the data for assessment. The advantages of the model lie in its versatility, minimal size, ease of use and speed of obtaining results.

In this paper, there was an executed investigation of the behavior of orthotropic decks with the system of cross and side stiffeners forming structural orthotropy. In order to conduct an analysis of the stress-strain behavior of such structures, the Bubnov-Galerkin variation method has been used. Comparative analysis of results, received in two ways has been conducted: calculation according to actual values of stiffness properties, calculation according to relative bending stiffness. It was shown, that calculation in such two ways gives sufficiently close results to each other. The suggested calculation method can be applied while “primary “non-mechanic” calculation methods of structurally orthotropic decks with different sizes in the plan and other boundary conditions.

Railway transport is one of the basic modes of transport and the economy as a whole for the Republic of Kazakhstan. It is this type of transport that ensures the transportation of a significant amount of dangerous goods of various properties. Failure to observe safety measures and precautions during their transportation may pose a threat to railway workers, the public, as well as to the environment. Transport safety is the highest priority of various parts of the railway transport. Safety depends on the synergistic interaction of many components of the transport process – the properties of the cargo, the technical condition of the rolling stock, the track and infrastructure of the railways, the qualifications of workers, the state of the environment, and the like. This article discusses the ecological problems in railway transport, their negative impact on the environment.

The article presents the results of research on obtaining a modified metal coating on the surface of dielectric materials. The study of the production of metal coatings using a chemical method on dielectric materials is one of the most important areas of research. Currently, there are a lot of plastic parts in cars, both inside and outside. To meet the aesthetic and protective requirements, these plastic parts receive metal coatings. Metallization of dielectric materials is used to change the characteristics of the processed samples. After the metal layer is deposited on the sample, the sample acquires additional resistance, namely to high temperatures, corrosion, wear and erosion. In addition, the deposited metal layer protects the finished product from the environment and serves as a decorative decoration. Metallization allows you to give non-metallic samples a certain property.

The article is devoted to the actual problem of creating damping steels with a nanostructured coating. The object of research is the steels used for the manufacture of gears, rims, half-couplings, gears and generating noise that creates acoustic discomfort. The main idea of ​​the work is to assess the acoustic, vibration, physical-mechanical and damping properties of steels, to obtain steels with a nanostructured coating with increased damping properties, which reduce noise and vibration. During the work, the acoustic (sound level, sound pressure level) characteristics of the alloys were investigated. Based on the results of the work carried out, new damping metal materials based on iron have been developed.

The paper analyzes ways to improve the quality index of the process of obtaining structural beryllium blanks by vacuum hot pressing of beryllium powders with a fineness of less than 56 microns. In the course of the work, the following were carried out: a comparative analysis of the quality of hot-pressed blanks depending on the production period; analysis of the representativeness of the values ​​of the characteristics of powders; studied the dynamics of changes in the chemical composition of beryllium in the process of grinding ingots. The results of studies of the reasons for the instability of the quality of sintered beryllium billets are presented. Using the method of mathematical statistics, the influence of individual factors of industrial production on quality indicators was studied. The results of changes in the chemical composition of beryllium during the grinding of ingots are presented, as well as an assessment of the irreproducibility of the results of analysis of the content of impurities and certification of products by mechanical properties.

The complexation of metal ions with polymer hydrogels has been studied. For the study, polyelectrolyte hydrogels based on hydroxyethyl acrylate, acrylic acid, and chitosan were synthesized, on the surface of which ions of various metals were chemisorbed with the formation of chelate complexes. The formation of complex compounds of the polymer hydrogel with ions of divalent and trivalent metals was confirmed by the data of IR spectra. The dynamics of swelling of a polyelectrolyte hydrogel based on a copolymer of acrylic acid and acrylamide has been studied. It was found that the swelling coefficient of the formed complexes depends on the nature of the transition metals: ion radius, electronegativity. New polymer-silicate composite materials have been obtained by intercalation polymerization of synthetic monomers. As a silicate component, we used the clay of the Darbazinsky deposit, previously activated with a 5% sodium carbonate solution. The composites were synthesized in the presence of a crosslinking agent at a temperature of 333.15 K for 1 hour. The formation of the target products is confirmed by the data of IR spectra and the kinetics of swelling.