Study on the lifetime assessment of output shaft bearings for transmissions in tracked vehicle considering its supporting structures

다국어 초록 (Multilingual Abstract)

The transmission of tracked vehicles performs complex functions such as steering, shifting, braking, etc. and the system level life timeis influenced by many sub-parts such as gear assembly, torque converter, clutches, bearings etc. In particular, the mechanical type steeringsystem has impact shock torques in steering shift and these shock torques can affect the durability of many sub-parts in power trainsystem. The field failure modes of gear assembly, steering assembly and the bearings of output shaft are very complex. In this study, theactual failure mode in the field operation of the transmission was investigated comprehensively. The endurance test for the resulting outputshaft, bearing failure analysis and life time assessment was also performed. The life time test method, which was developed for theinternal use at the Korea Institute of Machinery and Materials, was used in this study. The effects of each bearing damages with left andright output shafts of different structures were analyzed.

참고문헌 (Reference)

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