Vol 22, No 6 (2020)

The article presents the main stages of the biography Of N. I. Glukhovtseva (1938-1996), the first Director of the Volga Scientific Research Institute of Selection and Seed-Growing named after P.N. Konstantinov. The directions of scientific and research activities of the talented leader, an outstanding scientist-breeder and the practical results of her work that made a significant contribution to the development of agricultural science in the Russian Federation are reflected.

Developed a mathematical model for determining residual stresses with increasing plasma coatings, taking into account the stresses arising upon cooling of the material from the final temperature to ambient temperature; tension that arises when removing the fastening devices and tension that existed in the substrate before spraying. The developed mathematical models are adapted for the most common cases of fixing the base used in the practice of coating. Experimental studies of residual stresses were carried out, which showed good convergence with the values of residual stresses obtained theoretically.

The processing of industrial diamonds is reduced to the extraction of conditioned powders of various grain sizes from them. At present the depth of such processing is limited to the fine-grained micron and submicron powders; as a result, which fall into the waste category. In reality, these are complete and usable diamond powders. However, due to the above mentioned reasons, they may be unclaimed for an indefinite period of time at the moment, and moreover with a tendency to accumulate. The article deals with the problem of using unclaimed natural diamond powders and explores the prospects for their use.

Automation of processes of synthesis, the analysis and assessment of options of technological processes of assembly of the aircraft (A) upon transition to a nonplaz way of their production on the basis of electronic models of products allows to increase considerably number the automated systems of projects of technologies of assembly processes developed in. The technique of improvement of ways of search of options of assembly with use of the offered models of a choice of structure, creation of structure and schemes by technological preparation of modular and assembly production where the problem of determination of efficiency of operations of assembly can be reduced to the general problem of calculation of adequate transfer functions by introduction to assembly model in the form of mixed the column of subsets of ratios of entrance and output variables on complexes of the varied parameters and factors is developed.

The quality of the produced centrifugal compressors largely depends on the design quality of the flow path. In order to carry out high-quality design of low-flow stages of centrifugal compressors, in this work, a numerical model of a low-flow stage is verified and validated, which are based on modern methods of computational fluid dynamics - CFD (computational fluid dynamics) as part of CALS technologies. In the numerical model of the stage, clearances and labyrinth seals were modeled. The issues of using intergrid interfaces, application of turbulence and roughness models are considered. The obtained settings of the numerical model were used to validate seven model stages for the range of the optimal conditional flow rate Φopt = 0.008-0.018 at Mu = 0.785-0.804. The simulation results were compared with experimental data.

A method for physiological and biochemical real time characterization of intact cells in vitro was developed and used for express identification of microorganisms. The method provided differentiation of bacteria at the level of closely related groups and has a significant potential in cell biology. A concept of multi-channel transducer able to accelerate characterization of cells is discussed.

В статье описана предложенная автоматизированная система управления природоохранной деятельностью промышленного предприятия, включающая основные эколого-экономические инструменты.

The paper advocates the need to move from separate stages of the product life cycle (LC; R&D, production, operation) to a single project implemented in a new paradigm of system design based on software and methodological tools of model-based systems engineering (MBSE). Currently available in Russia foreign software (SW) and methodological MBSE tools for the design and development (D&D) of systems (including space instruments) are expensive and complex. This paper formulates and considers the question: «Is it possible to reduce the cost and simplify the use of software and methodological MBSE tools by means that are available to a wide audience of users?». To answer this question, the authors analyzed SysML, QFD method, HoQ method, and the SW for their application. As the result of literature review, it is shown that in the leading countries, the relevance of implementing these tools in the design and development of hardware and software systems is increasing. For the use of SysML, QFD, HoQ by a wide audience of potential users from Russian Federation were defined software tools. 13 disadvantages that prevent the application of SysML, QFD and HoQ, as well as SW for their use were identified. In order to overcome the identified disadvantages, was developed SW and methodological MBSE tool based on modernization, specification and synthesis of SysML, QFD, HoQ and SW for their application. The developed MBSE SW and methodological tool allows for a wide audience of users to D&D systems in accordance with MBSE approach (QFD, HoQ, SysML), to identify critical requirements of different development elements, to develop automatically (in a few hours instead of several days) and update SysML models of requirements, to reduce labor costs for the implementation of the D&D LC stages of future analog products by 5-10%. As a result of validation of SysML models, it is proved that their repeated use reduces the planning time of the LC stages of analog products by up to 60%, increases the compliance of the reporting documentation of the LC stages with the requirements of regulatory and technical documents by 10%.