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Vol. 18 (2015 year), No. 1
Vlasov A. B.
On properties of laser diodes at cryogenic temperatures
The experimental analysis of physical and spectral features of laser diodes at natural and cryogenic temperatures has been carried out
(in Russian, стр.3, fig. 4, tables. 0, ref 4, Adobe PDF, Adobe PDF 0 Kb)
Vol. 27 (2024 year), No. 4, DOI: 10.21443/1560-9278-2024-27-4
Bezhik A. S., Lebedev A. K., Romanovsky V. V., Vlasov A. B.
Application of DC distributed bus bar power systems on ships
Operation of vessels sailing along the Northern Sea Route is associated with numerous risks that determine increased requirements for the reliability of the propulsion system. In this regard, it is important to use ship electrical networks based on the distribution of direct current (DC) electricity, the operation of which provides a number of advantages in comparison with AC distribution systems. Conducting technical control of imported ship equipment due to the lack of information received from foreign manufacturers is an urgent need. Using the example of a propulsion electric plant with Azipod-type equipment, methods for assessing the technical condition of the propulsion electric motor, protecting the shaft from parasitic voltages and currents that can accelerate the destruction of bearings have been described. Methods for troubleshooting semiconductor elements included in the frequency converter have been considered. Probable errors in the operation of the nacelle position monitoring system have been presented. The possibilities of remote assessment of the technical condition of the system have been determined. The aim of the work is to develop stages of technical control and evaluation of the obtained parameters for the development of expert decisions on the operational reliability and prospects for further operation of equipment and elements in Azipod-type propulsion electric systems relevant on numerous vessels.
(in Russian, стр.13, fig. 16, tables. 1, ref 6, AdobePDF, AdobePDF 0 Kb)
Vol. 27 (2024 year), No. 4, DOI: 10.21443/1560-9278-2024-27-4
Vlasov A. B.
Algorithms of training programs for simulator training of ship's engine room personnel
The ship's engine room personnel (mechanics, electromechanics) ensure the technical operation and safe functioning of the ship's power systems. Professional training and retraining of marine specialists of ship's engine rooms is necessary due to the constant improvement of equipment and automation of electric power systems of modern ships. To ensure high-quality training of the ship's engine room team, simulator training is used with a set of modern simulators of ship power plants and electric power systems that meet the standards of the International Convention on Standards of Training, Certification and Watchkeeping for Seafarers. In the course of the study, block diagrams of training algorithms have been developed; program features and examples of their operation have been shown. The obtained algorithms for training on simulators make it possible to implement both the initial training of cadets and the retraining of specialists when improving their qualifications. In the course of simulator practice, the opportunity to develop competencies for working with high-voltage equipment (3–10 kV) of modern ships in accordance with the requirements of the STCW Convention and the STCW Code is of particular importance. Algorithms for training in high-voltage equipment maintenance should be introduced into the educational process to improve the level of qualification of specialists.
(in Russian, стр.10, fig. 6, tables. 1, ref 4, AdobePDF, AdobePDF 0 Kb)
Vol. 27 (2024 year), No. 4, DOI: 10.21443/1560-9278-2024-27-4
Vlasov A. B.
Models and methods of quantitative thermography in electric power engineering
(in Russian, стр.2, fig. 1, tables. 0, ref 0, AdobePDF, AdobePDF 0 Kb)