关键词: 电动自行车, 中置传动模组, 降噪

Abstract: The noise reduction method of E-Bike mid-mounted transmission module was studied. Modeling of the mid-mounted transmission module was conducted in MASTA software, the shell stiffness was added to the model after shrinkage. Considering the bearing stiffness and shaft deformation, the tooth shape of the gear was modified in the tooth direction. The required transmission error was calculated and minimized to achieve optimal simulation NVH calculation results. A prototype was produced based on the design scheme to verify the feasibility of the noise reduction method. After testing and verification, the simulation and experimental results were consistent.

Key words: E-Bike, mid-mounted transmission module, noise reduction