• Title/Summary/Keyword: 평치차

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Spur and helical gear design for manual transmission (수동 변속기용 평치차 및 헬리컬 치차 설계)

  • 이강현
    • Journal of the korean Society of Automotive Engineers
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    • v.12 no.6
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    • pp.3-10
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    • 1990
  • 본 고에서는 자동차용 수동변속기에 사용되는 평치차 및 헬리컬 치차에 대해서 설계조건과 설계절차 및 방법에 관해서 논하고자 한다. 자동차용 변속기의 치차 설계자는 gear box내의 좁은 공간에서 가장 정숙하고 튼튼하고, 소형.경량화된 치차를 설계하기 위해서는 module, 공구압력각, 치높이, 치선원경 등이 표준에서 벗어나는 특수 cutter를 이용하여 제작되도록 치차 설계를 할 수 밖에 없으나 자동차용 치차가 대량 생산되는 점에 비추어 볼때 특수 cutter를 사용하는데 드는 비용은 문제가 되지 않는다고 본다.

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A Root Fillet Stress Calculation Method for Thin-Rimmed spur Gears (얇은 림 평치차의 이뿌리 응력 계산법)

  • Chong, Tae-Hyong;Choi, Jae-Hoon
    • Journal of the Korean Society for Precision Engineering
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    • v.8 no.2
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    • pp.89-105
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    • 1991
  • A method to apply the approximation formulae[1] for tooth fillet and root stresses of a thin-rimmed rack to the calculation of stress state of thin-rimmed external and internal spur gears is introduced. The stress values by the method proposed in this paper have shown good agreement with those by the REM analysis and also by the stress measurement of strain survey investigation. By this method, reliable stress state at tooth fillet and root areas in the thin-rimmed external and internal spur gears can be easily calculated, and a practical design method for the bending strength of such thin-rimmed gears is established.

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Analysis of Torque on Spur Gear by Inverse Problem (역문제에 의한 평치차의 토크 해석)

  • 박성완
    • Transactions of the Korean Society of Machine Tool Engineers
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    • v.12 no.5
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    • pp.24-33
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    • 2003
  • This study proposed a technique for inverse problem, linear approximation of contact position and loading in single and double meshing of transmission contact element using 2-dimension model considered near the tooth by root stress. Determination of root stress is carried out far the gear tooth by finite element method and boundary element method. Boundary element discretization near contact point is carefully performed to keep high computational accuracy. The predicted results of boundary element method are good accordance with that of finite element method.

Analysis of Torque on Spur Gear by Inverse Problem (역문제에 의한 평치차의 토크 해석)

  • 박성완;이장규;우창기;김봉각;윤종희;인승현
    • Proceedings of the Korean Society of Machine Tool Engineers Conference
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    • 2002.10a
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    • pp.3-10
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    • 2002
  • This study proposed a technique for inverse problem, linear approximation of contact position and loading in single and double meshing of spur gear, using 2-dimension model considered near the tooth by root stress. Determine root stress is carried out for the gear tooth by finite element method and boundary element method. Boundary element discretization near contact point is carefully performed to keep high computational accuracy. And from those estimated results, the comparing estimate value with boundary element method value was discussed.

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