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This study presents a multi-objective design optimization framework for two-stage helical gearboxes featuring a dual-gear configuration in the first stage. The primary design goals are to minimize the total axial length of the gearbox and to maximize its mechanical efficiency. To solve this complex trade-off problem, the Multi-Objective Evolutionary Algorithm based on Decomposition with Differential Evolution (MOEA/D-DE) is employed due to its strong convergence and diversity maintenance capabilities. The gearbox design is parameterized through geometric, material, and operational constraints derived from established standards. The optimization results reveal a set of non-dominated solutions offering valuable design trade-offs between compactness and efficiency. This work contributes a practical approach for high-performance gearbox design, with potential implications in applications requiring space-saving and energy-efficient power transmission systems.

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Design Optimization of Compact and High-Efficiency Dual-Gear Helical Gearboxes Using MOEA/D-DE

  • 会议论文

  • 发表日期：

    2026年

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  • Dinh Van Thanh,
  • Vu Duc Binh,
  • Bui Thanh Hien,
  • Do Thi Tam,
  • Tran Ngoc Giang

摘要

This study presents a multi-objective design optimization framework for two-stage helical gearboxes featuring a dual-gear configuration in the first stage. The primary design goals are to minimize the total axial length of the gearbox and to maximize its mechanical efficiency. To solve this complex trade-off problem, the Multi-Objective Evolutionary Algorithm based on Decomposition with Differential Evolution (MOEA/D-DE) is employed due to its strong convergence and diversity maintenance capabilities. The gearbox design is parameterized through geometric, material, and operational constraints derived from established standards. The optimization results reveal a set of non-dominated solutions offering valuable design trade-offs between compactness and efficiency. This work contributes a practical approach for high-performance gearbox design, with potential implications in applications requiring space-saving and energy-efficient power transmission systems.