• Computer-Aided Design for Helical Gear Shaping Cutters

    In the realm of gear manufacturing, gear shaping remains a critical process for producing external gears, multi-stage gears, and internal gears. The advancement in gear shaping cutter technology has garnered significant interest from tool manufacturers, driven by the need for high precision and efficiency. Modern gear shaping machines and cutters can achieve cutting speeds and…

  • Finite Element Analysis of Dynamic Contact Stress in RV Reducer Rolling Bearings

    In the field of precision transmission systems, the RV reducer stands out as a critical component due to its high load capacity, compact design, and exceptional accuracy. As an engineer specializing in mechanical reliability, I have extensively studied the dynamic behavior of rolling bearings within RV reducers, as their performance directly impacts the overall system’s…

  • Friction Dynamics of Miter Gears

    I investigate the dynamic behavior of a miter gear transmission when friction, alignment error, and tooth tip modification are included. A miter gear pair is treated as two helical gear pairs connected through a common shaft system. The left and right halves of the miter gear are coupled by axial stiffness and damping, while each…

  • Comprehensive Analysis and Calculation of Time-Varying Meshing Stiffness for Profile Shifted Involute Spur Gears

    The dynamic behavior of gear transmission systems is profoundly influenced by the periodic variation of gear mesh stiffness. During the meshing cycle of spur gears, the number of tooth pairs in simultaneous contact fluctuates, and the elastic teeth can be modeled as time-varying springs aligned with the line of action. This periodic elastic deformation is…

  • Failure Analysis of Gear Forging for New Energy Vehicles

    In my work on new energy vehicle drivetrain components, I have seen how quickly a small manufacturing anomaly can become a large delivery risk. Under the global push for energy saving, emission reduction, carbon peaking, and carbon neutrality, new energy vehicles have entered millions of households. Their performance directly affects occupant safety. Among the most…

  • Forged Gear Blank Dimension Control

    I treat the production of automotive rear-axle bevel gear forged gear blanks as a coupled mechanical, hydraulic, and metrological problem rather than as a single forming operation. The forged gear blanks must survive a severe service environment, carry heavy load, resist wear, and remain safe in operation. They are also common replacement parts during major…

  • Planetary Pinion Gear Driven Precision Maize Seed Metering

    I designed a planetary pinion gear driven disturbance-assisted high-speed precision seed metering device to overcome the leakage, blockage, and poor seed-filling stability that occur in mechanical maize meters at high forward speeds. The core idea of my design is to use a planetary pinion gear train to generate a reverse and differential motion between an…

  • Analysis of Loading Methods on Warm Forging Performance for Gear Shafts

    In the manufacturing of critical components like gear shafts, the forging process plays a pivotal role in determining the final product quality. As an engineer specializing in metal forming, I have extensively studied how various process parameters influence the成形质量 of gear shafts, particularly through warm forging. Gear shafts, which integrate shaft and gear elements into…

  • Metal Flow Dynamics in Precision Forming of Spur and Pinion Gears

    In the realm of gear manufacturing, precision forming techniques for spur and pinion components have garnered significant attention due to their potential for enhancing mechanical properties and reducing material waste. As a researcher focused on advanced forming processes, I delve into the intricacies of metal flow during a novel two-step precision forming method for spur…

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