MOSCOW, December 13. VyatSU scientists have found that the use of permanent magnets made of samarium-cobalt alloy under significant external overloads ensures high reliability of the operation of devices that distribute the “movement” of current in electrical circuits. As the university press service noted, the results of the study may be useful to developers of space and aircraft.
Designers of Vyatka State University (VyatSU) explained that achieving supersonic speed is currently perhaps the main requirement for aircraft for various purposes. At the same time, working in such conditions is inevitably associated with severe overloads affecting the units.
VyatGU researchers studied the problems of switching reliability and fixing the final position of electrical contacts in such conditions and proposed to improve the existing designs of an electrical switching device (SEA) by installing domestically produced permanent magnets made of samarium-cobalt alloy.
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“Such work is not uncommon in the domestic electrical equipment industry. The main problem is their relevance, since most developments occurred during the Soviet era. In our work, we have established that the use of samarium-cobalt permanent magnets ensures high resistance of CEA to external influences: vibrations; blows; overloads,” said Valery Golovenkin, associate professor of the Department of Electrical Machines and Devices of Vyatka State University.
The scientist added that in connection with the development of software capabilities, computer modeling of the operation of the studied electrical switching device under severe operating conditions is of great interest. Such modeling makes it possible, in particular, to predict its functioning at low temperatures and close to absolute zero (in outer space).
The university noted that the emergence of new design materials and software at the disposal of engineers makes it possible to take into account many factors in modeling and unlimitedly improve the characteristics and weight and size indicators of existing domestic developments.
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