다물체 동역학 시뮬레이션을 활용한 평기어 쌍의 기어 동적인자 예측

초록

Gear systems operating under high-speed and heavy-load conditions can experience performance degradation and durability issues due to vibrations and noise that are generated during operation. These dynamic issues can accelerate gear wear, increase the risk of gear fatigue failure, and reduce efficiency, thus demonstrating the importance of accurately predicting and analyzing the dynamic factor(Kv) of gear systems at the design stage. The dynamic factor is a coefficient that considers the effects of internal vibrations caused by transmission errors and other factors on the load transmitted by the gears, and it therefore serves as an indicator of the internal dynamic characteristics of the gear system. This study predicted the dynamic behavior of gear systems at various rotational speeds using a multibody dynamics simulation, and the reliability of the simulation results obtained in this way was verified by comparing them with actual test data-derived dynamic factor values. The close similarity between the actual test results and the simulation outcomes confirms the effectiveness of this prediction method. Altogether, utilizing such a dynamic factor prediction approach during the design phase can allow for the assessment and optimization of gear system durability while minimizing costs and time demands.

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