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As the increasing of requirement for automobile quality [1], the transmission rattle noise becomes more and more important for NVH performance. Generally, two factors is significant to the transmission rattle [2]: the external excitation caused by the input speed and torque from the engine, and the internal incentive factors caused by the time-varying stiffness, damping, gear side clearance and mesh error. This paper is trying to analyze the influencing factors for automotive transmission, and summarize the ways for rattle reduction.

Dynamics Modeling of Transmission Gear Rattle and Factors Analysis