4_2023_sen_6

Title of the article INVESTIGATION OF THE CAVITATION PROCESS IN THE CIRCULATION CIRCLE OF THE HYDROMECHANICAL TRANSMISSION OF THE BELAZ LOADER
Authors

PARMANCHUK Vera V., M. Sc. in Eng., Second Category Design Engineer of the Design Bureau of Hydromechanical Transmissions, JSC “BELAZ — Managing Company of the Holding “BELAZ-HOLDING”, Zhodino, Republic of Belarus, This email address is being protected from spambots. You need JavaScript enabled to view it.">This email address is being protected from spambots. You need JavaScript enabled to view it.

SHYSHKO Siarhei A., Deputy Chief Designer – Head of Mechanical Transmissions Department, JSC “BELAZ — Managing Company of the Holding “BELAZ-HOLDING”, Zhodino, Republic of Belarus, This email address is being protected from spambots. You need JavaScript enabled to view it.">This email address is being protected from spambots. You need JavaScript enabled to view it.

REHINIA Uladzimir V., Ph. D. in Eng., First Category Design Engineer of the Design Bureau of Hydromechanical Transmissions, JSC “BELAZ — Managing Company of the Holding “BELAZ-HOLDING”, Zhodino, Republic of Belarus, This email address is being protected from spambots. You need JavaScript enabled to view it.">This email address is being protected from spambots. You need JavaScript enabled to view it.
In the section MECHANICAL ENGINEERING COMPONENTS
Year 2023
Issue 4(65)
Pages 47–53
Type of article RAR
Index UDK 621.226.5:532.528
DOI https://doi.org/10.46864/1995-0470-2023-4-65-47-53
Abstract A study of the working fluid flow in the torque converter was carried out using CFD modeling technology and an analysis of the dependence of cavitation on the torque converter operating mode. It is noted that torque converter cavitation mainly occurs at low gear ratios, the degree of cavitation decreases as the gear ratio increases. Most of the cavitation bubbles formed at the ends of the reactor wheel blades, which led to an unstable change in the moment characteristics and a deterioration in the torque converter performance. The analysis showed that the cavitation process is extremely unstable and periodic, and the development of cavitation near the top of the impeller blade occurs in four stages: the creation, growth, separation and decay of cavitation bubbles.
Keywords torque converter, CFD modeling, cavitation, heterogeneity, fluid flow, circulation circle, hydraulic losses, hydromechanical transmission
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