Abstract
Friction excitation is an important factor affecting gear vibration and noise. This paper analyzes the variation law of sliding friction during helical gear meshing, and the calculation algorithm of friction force and torque of helical gear is derived. The effects of working parameters on the friction force and torque are analyzed based on the time-varying friction factor model. The calculation method of the friction force and friction torque of pitting helical gear is given by establishing the quadrilateral pitting model on the tooth surface of the helical gear. The influence of pitting parameters on the friction force and torque is analyzed, which can provide the research basis for the dynamic response analysis of pitting gear.
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