scholarly journals Comparison of the design features of an electromechanical converter with a discrete secondary part with the classical installation options

2021 ◽  
Vol 2131 (2) ◽  
pp. 022025
Author(s):  
D N Kuimov ◽  
M S Minkin

Abstract In the present article, devices with a discrete secondary part are considered, which act as means of intensifying many technological processes of mixing and dispersing materials. In the classic version, the device has a number of disadvantages. To eliminate the shortcomings, the design of an electromechanical converter with a discrete secondary part was developed, which differs from the classical version by a magnetic system capable of implementing the process of controlling the movement of a large set of ferromagnetic elements along a pre-developed trajectory.

2021 ◽  
Vol 11 (2) ◽  
pp. 135
Author(s):  
Sabindra Raj Bhandari

The present article explores the interrelationships between language and thought in the literature of the Vedic Canon. Whether language shapes thoughts or vice versa has remained a topic pregnant with perpetual discussions, interpretations, and explanations since the beginning of human civilization. Throughout the multiple crossroads of the development in the intellectual tradition, the dimensions of language and thought attracted many scholars and linguists. However, linguists like Edward Sapir and Benjamin L. Whorf in the twentieth century have systematically interpreted and analyzed the language-thought dimensions. Whorf postulated that language shapes thoughts while Sapir projected that language is in the grip of thought. The literature of the Vedic Canon has also logically and systematically projected the multiple dimensional, but agglutinative relationships between language and thought. The hymns of the Rig Veda, myths from Brahmanas, and the lore from Upanishads unravel, interpret, and enrich the language-thought interconnection in such a way that the Vedic literature remains as the classical version of Sapir-Whorf hypothesis written in Sanskrit. In this regard, the Vedic literature and Sapir-Whorf hypothesis play the same tune of music in different lyres. The present paper attempts to reveal this point of unity in diversity between the two seemingly diverse schools of thoughts—classical Vedic literature and modern linguistic theory of Sapir-Whorf hypothesis. Being the qualitative research, this paper explores, interprets, and correlates the theoretical concepts, ideas, and phenomena from the Vedic literature and Sapir-Whorf hypothesis.


2017 ◽  
Vol 14 (3) ◽  
pp. 323-331 ◽  
Author(s):  
Denis Kuimov ◽  
Maksim Minkin

An alternative configuration of a device with a secondary discrete part using a magnetic system of a similar multi-phase inductor machine and concentrated windings without an internal rotor is proposed. An algorithm of sensorless control of a motion process of a secondary discrete part is proposed. The analysis of the distribution nature of the magnetic field for various switching algorithms is carried out to reduce negative influence of the ?dead? zones of the first and second order. The features of the movement process of the secondary discrete part in the working chamber of the device are considered. The results of in the electromagnetic force change affecting a ferromagnetic working element are presented, and recommendations for the application of switching algorithms are given.


2018 ◽  
Vol 8 (4) ◽  
pp. 98-104
Author(s):  
Elena A. SYSOEVA

The article describes the building of mechanical mills and grain barns of the Samara province. The types of mill constructions, volume-spatial, planning, design features are shown. Transitional types of buildings from wind and water mills to mechanical are identifi ed. The features of the formation of the external architectural appearance of the mills, the relationship with the technological processes of production are determined. Mill buildings are considered as part of industrial complexes, which also include buildings for the placement of engines, grain barns and elevators, offi ces, residential buildings.


2020 ◽  
Vol 48 (2) ◽  
pp. 166-198
Author(s):  
Maciej Grabski

The present article looks at different patterns of adjectival postmodification in Old English. A detailed corpus analysis is performed, whose results are interpreted within the framework of Construction Grammar. This study contributes to previous research on the subject by using a large set of corpus data which pave the way for adopting a usage-based approach. The results indicate that the patterns analyzed fulfilled different functions, which in the framework adopted is grounds enough for assigning them to different conceptual categories, i.e., “constructions.” Further, I investigate the mutual relations between these constructions as well as the internal dynamics of their functions and development. The findings support the basic constructionist notion that language is most effectively described as a complex and dynamic network of interrelated constructions.


2008 ◽  
Vol 71 (3) ◽  
pp. 409-431 ◽  
Author(s):  
Hezy Mutzafi

AbstractThe present article seeks to describe a major group of Jewish North-Eastern Neo-Aramaic (NENA) dialects located across the Great Zab river in the eastern and south-eastern parts of the dialectological map of NENA, hence the term “Trans-Zab Jewish Neo-Aramaic” (“Trans-Zab”, for short) chosen for this dialect group. A large set of phonological, morphophonological, morphological and lexical innovations, shared by all members of this group, is presented. Each of the Trans-Zab features is compared with contrastive parallel features in other, selected NENA varieties. Finally, an internal classification of Trans-Zab into three subdivisions is proposed, based on a comparison of three respective paradigms of the positive present copula.


2019 ◽  
Vol 6 (3) ◽  
Author(s):  
Sergej Gorbachev ◽  
Andrej Ponomarev

The article deals with some interesting engineering solutions implemented in the process of installation of arch span structures of the channel part of the bridge crossing the Volga river in Nizhny Novgorod, due to the design features of the arch span structures and local conditions: technology of assembling arches on the coastal slipway; construction of the slipway for Assembly and tightening of the arch trusses of the arch; technology lateral shifting of the arches on the piers on carriage; design piers of the carriages and pusher device; technology of loading and transportation of arches on floating supports; design of floating supports, their adjustment, strengthening of used barges; snap-in for positioning floating supports; erection strengthening arched spans with temporary stands and pendants; technology of lifting and installation of arches in the design position; used equipment and floating means; a way of immersing the tubular piles piers and methods to confirm their load-carrying ability; necessary coordination with regulatory organizations. The engineering novelty of the above technical solutions in the method of installation of arched superstructures with flexible tightening and cable-stayed suspensions – a design that was not initially adapted to surfacing installation. The author presents drawings and photographs of the most typical auxiliary structures and technological processes that took place during the construction of arch span structures of the bridge. This material can serve as an analogue in the design and construction of such out-of-class bridges across large navigable rivers.


Author(s):  
R. D. Korolev ◽  
P. Yu. Bochkarev ◽  
L. G. Bokova

The article presents a method for quantifying the production manufacturability of products. This method allows us to evaluate the compliance of the design features of the part from the point of view of implementing the principle of unity and constancy of bases in the design of technological processes. The applied method allows to increase the productivity of technological equipment in the processing of parts by taking into account the results of the assessment of production manufacturability.


1996 ◽  
Vol 32 (4) ◽  
pp. 2862-2865 ◽  
Author(s):  
V.I. Pantsyrnyi ◽  
A.K. Shikov ◽  
A.D. Nikulin ◽  
A.G. Silaev ◽  
N.A. Bel'akov ◽  
...  

Vestnik IGEU ◽  
2020 ◽  
pp. 22-31 ◽  
Author(s):  
A.I. Tikhonov ◽  
A.V. Stulov ◽  
A.A. Karzhevin ◽  
A.V. Podobny

Currently, when designing power transformers in order to take into account the influence of the asymmetry of the magnetic system on the operation of the device, especially in transition modes, engineering analysis packages based on field models are increasingly being used. However, such models are slow. At the same time, dynamic transformer models based on the magnetic circuit model are not inferior in accuracy to field models. Existing chain models of a three-phase transformer either do not take into account the asymmetry of the magnetic system or poorly integrate with simulation packages. The purpose of this article is to develop a dynamic model of a three-phase transformer which would allow considering the design features at the design stage, in particular, the asymmetry of the magnetic system and the influence of these features on arbitrary modes of the device operation. A contour current method was used to calculate a non-linear magnetic circuit of a three-rod transformer, and a single-step method based on a modified 2nd order Rosenbrock formula was used to calculate the electrical circuit. A nonlinear dynamic model of a three-phase three-core transformer based on the use of controlled current sources and EMF has been developed. This model is able to integrate with simulation packages including MatLab Simulink SimPowerSystem. The model allows taking into account the influence of the asymmetry of the magnetic system on the transformer operation in various operating modes including emergency and asymmetric ones. The novelty of the developed model can be seen in the approach to constructing a nonlinear matrix of magnetic resistances without explicitly using inductance matrices, which increases the accuracy and stability of the model considering the asymmetry of the magnetic system. The curves of transients in the characteristic operating modes of the transformer are given. The developed models can be used in the design of power transformers, including specific ones. They enable to increase the accuracy of the verification calculation and bring it to the level of simulation modelling. These models can also be applied for constructing digital twins of power transformers taking into account the influence of the design features of transformer equipment on the operation of power grids.


10.12737/4851 ◽  
2014 ◽  
Vol 8 (4) ◽  
pp. 49-61
Author(s):  
Борис Хамицев ◽  
Boris Khamitsev ◽  
Михаил Буткевич ◽  
Mikhail Butkevich ◽  
Сергей Байкин ◽  
...  

The present article considers the issues of replacement of widespread compositions in equipment on the basis of carbide of tungsten, carbide of chrome, carbide of the titan, cobalt and nickel on much cheaper powders from cast iron and steel. The authors describe the experience in developing serial technological processes of worn-out detail restoration and hardening of newly-made details and units for the system of housing and communal services, consumer services, as well as automobile, textile, oil-extracting, food, paper-making and other industries


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