Dynamic Analysis of Gear Rattling of a Certain Type of Dual-Clutch Transmission

In order to accurately explore the transmission rattling phenomenon and influence of different factors on dynamic characteristics gear dual-clutch under condition preselected gears, this paper establishes dynamics model with 1st without preselection 4th gear, respectively; The takes into account such as time-varying mesh stiffness, damping, nonlinear oil film force, backlash, drag torque generated by clutch in unengaged state. addition, feasibility was verified bench test. On basis, we took meshing power system loss quantitative indexes analyze state parameters rattle vibration transmission. results show that pre-selected will not have a significant effect gears been rattled non-pre-selected state, fluctuation non-power flow shaft is aggravated branch ratio at levels, which makes overall strength increase. improve efficiency input end should be reduced much possible, larger lubricant viscosity can appropriately selected, inertia empty properly reduced, tooth clearance relaxed for selection.