Analysis and Simulation of Dynamic Characteristics of Helical Gears

To solve noise and vibration problem and other problems of helical gears, to improve its reliability and safety, this paper uses transmission of helical gear as the research object and makes an analysis of dynamic characteristics of time-varying contact wire and time-varying friction after giving the length of the contact wire, time-varying friction and fast Algorithm for the friction torque. The results of experiment show that the fluctuations of time-varying contact wire is an important cause of tooth surface friction and tooth surface friction torque fluctuations. Time-varying contact wire length, tooth surface friction and friction torque fluctuations are smallest at twenty centigrade degrees, which provide a theoretical basis for the parameter design of gears and engineering optimization.