2_2021_sen_1

Title of the article METHOD FOR ESTIMATING THE RESIDUAL LIFE OF GEARS IN THE INTER-REPAIR PERIOD
Authors

ISHIN Nikolay N., D. Sc. in Eng., Assoc. Prof., Chief of the R&D Center “Mining Machinery”, Joint Institute of Mechanical Engineering of the NAS of Belarus, Minsk, 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.

GOMAN Arkadiy M., Ph. D. in Eng., Assoc. Prof., Head of the Department of Dynamic Analysis and Vibration-based Diagnostics of Machines, Joint Institute of Mechanical Engineering of the NAS of Belarus, Minsk, 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.

SKOROKHODOV Andrey S., Ph. D. in Eng., Leading Researcher of the Department of Dynamic Analysis and Vibration-based Diagnostics of Machines, Joint Institute of Mechanical Engineering of the NAS of Belarus, Minsk, 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.

NATURJEVA Marina K., Research Scientist of the Department of Dynamic Analysis and Vibration-based Diagnostics of Machines, Joint Institute of Mechanical Engineering of the NAS of Belarus, Minsk, 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.

DAKALO Yuriy A., Ph. D. Student, Joint Institute of Mechanical Engineering of the NAS of Belarus, Minsk, 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 DYNAMICS, DURABILITY OF VEHICLES AND STRUCTURES
Year 2021
Issue 2
Pages 5–17
Type of article RAR
Index UDK 621.833
DOI https://doi.org/10.46864/1995-0470-2021-2-55-5-17
Abstract The aim of the work is to create a computational and experimental method for the operational evaluation of the residual life of spur gears of technically complex products in the inter-repair period by conducting periodic vibration control. The proposed method is based on the main provisions of the theory of vibration-pulse diagnostics of gears developed in the Joint Institute of Mechanical Engineering of the National Academy of Sciences of Belarus. At the same time, the current value of the KV coefficient, which takes into account the internal dynamic load in the engagement of each gear, and its change during operation is determined based on the analysis of the time realizations of vibration accelerations. The main operation capacity criteria are the contact and bending strength of the teeth. An example of estimating the residual life of a gear pair is given that limits the reliability of a double-row planetary gear motor-wheel of a heavy-duty dump truck. The proposed method makes it possible at any stage of operation of a gear mechanism to assess the residual life of its gears, identify its most “weak” links, determine the probability of failure of the object, minimize the risk of accidents, optimize maintenance schedules, increase the inter-repair time. Thus, it is possible to organize highly effective monitoring of the reliability-limiting components of the technically complex products during operation and transition from planned preventive maintenance of machines to maintenance according to the actual condition.
Keywords toothed gear, technical condition in operation, inter-repair period, internal dynamic load in engagement, contact endurance, bending endurance, vibration monitoring, residual life
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