Changing of Power Transmitting Characteristics of Cylindrical Involute Gears owing to Scoring Failure

概要

論文の詳細を見る
When a scoring failure occurs on involute spur or helical gears, their power transmitting characteristics become different from those before scoring initiation. Measured and analyzed states of tooth fillet stress show, that it increases considerably with progress of scoring. The increase of the maximum contact stress stays at somewhat lower level than that of the maximum fillet stress. The analysis on the thermal and lubricating conditions on or between tooth flanks shows, that the rise of frictional coefficients and bulk temperature owing to initiation of scoring is responsible for the progress of scoring. When the state of scoring is very severe, the gear vibrational excitation becomes generally very strong, but at the beginning stage of scoring the changing of gear vibrational excitation receives strong influence from gear dimensions : in some gears the initiation of scoring makes gear noise and vibration stronger, but in some other gears it makes them weaker.
一般社団法人日本機械学会の論文