歯底に油穴を有する平歯車対の歯元応力に関する研究

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タイトル別名
  • Tooth Root Stress of Spur Gear Pair with Holes at Bottom Land.
  • シ テイ ニ アブラアナ オ ユウスル ヒラハグルマ ツイ ノ ハモト オウリ

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Sometimes, holes at the bottom land of gears are made for lubrication of gear systems, such as gears in manual transmission where a needle bearing is used between the gear and shaft. In the present study, a pair of spur gears with holes at the bottom land is analyzed by a three-dimensional finite-element method. The distributions of the tooth root stress and the tangential stress at the periphery of holes are obtained. The effects of the addendum modification coefficient, tooth width, number of holes and hole position along the tooth width on the distributions are investigated under the loading condition of a concentrated force and two kinds of gearing with uniform and partial contacts. Some of the numerical results are experimentally confirmed by the stress measurment.

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