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Gear loading capacity is a critical factor in designing high-performance mechanical transmissions. This study investigates gear loading capacity enhancement by focusing on surface integrity, surface treatments, and anti-fatigue/scuffing design. A few-sample gear fatigue test method, employing ensemble learning and data augmentation, significantly reduces testing time and sample number. A high-performance gear database, encompassing over 10,000 data including fatigue S-N curves, fatigue and scuffing limits, and surface integrity parameters for various materials like 16Cr3NiWMoNbE, 9310, 20CrMnTi, 18CrNiMo7-6, and PEEK, was proposed. A dedicated database software encompassing over materials, manufacturing processes, gear geometries and structures, and performance facilitates efficient gear high-power-density design. Furthermore, a wireless gear monitoring system, capturing signals of temperature, stress and vibration, was developed. As a result, the contact fatigue, bending fatigue and scuffing limits of gears were significantly improved compared to the ISO standard 6336, promoting lightweight design for next-generation transmission equipment.

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Study on Loading Capacity and Database of High-Performance Gears

  • 会议论文

  • 发表日期：

    2026年

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  • Chenfan Jia,
  • Jizhan Wu,
  • Difa Chen,
  • Taimin Chen,
  • Huaiju Liu

摘要

Gear loading capacity is a critical factor in designing high-performance mechanical transmissions. This study investigates gear loading capacity enhancement by focusing on surface integrity, surface treatments, and anti-fatigue/scuffing design. A few-sample gear fatigue test method, employing ensemble learning and data augmentation, significantly reduces testing time and sample number. A high-performance gear database, encompassing over 10,000 data including fatigue S-N curves, fatigue and scuffing limits, and surface integrity parameters for various materials like 16Cr3NiWMoNbE, 9310, 20CrMnTi, 18CrNiMo7-6, and PEEK, was proposed. A dedicated database software encompassing over materials, manufacturing processes, gear geometries and structures, and performance facilitates efficient gear high-power-density design. Furthermore, a wireless gear monitoring system, capturing signals of temperature, stress and vibration, was developed. As a result, the contact fatigue, bending fatigue and scuffing limits of gears were significantly improved compared to the ISO standard 6336, promoting lightweight design for next-generation transmission equipment.