| Issue |
MATEC Web Conf.
Volume 317, 2020
7th International BAPT Conference “Power Transmissions 2020”
|
|
|---|---|---|
| Article Number | 02002 | |
| Number of page(s) | 5 | |
| Section | Dynamics, Vibration and Noise | |
| DOI | https://doi.org/10.1051/matecconf/202031702002 | |
| Published online | 03 August 2020 | |
Dynamic loading of friction disks in automotive transmissions
1 IES UB RAS, Department of Transportation Vehicles Mechanics, 620049, Ekaterinburg, Russian Federation
2 Kurgan State University, Department of Applied Mechanics, 640020, Kurgan, Russian Federation
* Corresponding author ig_tar@mail.ru
The article describes a refined method for design studies of friction disks that are integrated into automotive transmissions. A technique is presented to enable finding the natural frequency spectrum exhibited by disks as distributed mass multicomponent bodies. Grounds are given that explicate the necessity to evaluate the stability of oscillations when high-frequency dynamic processes evolve in a nonlinear system after friction clutches are disengaged and when friction clutches are being engaged and wavelike plastic deformations emerge giving rise to overheated spots. The article also sheds light on specific features inherent in the off-design behavior subsequent to the stopping of the clutch booster and pressure unbalance in the clutch booster plenums. The research studies have produced a number of technical solutions that reduce the amplitude of the high-frequency oscillations, which are generated after friction clutches are disengaged and result in plastic deformations of mating surfaces as well as disturbed axial movability of friction disks. They have substantiated the necessity that the relevant linear velocity should be restricted having determined the boundaries of tolerated linear velocities of revolving friction disks. The article presents results of researching into the processes consequent to pressure unbalance in the friction clutch booster plenums and proposes technical solutions to do away with its adverse effects.
© The Authors, published by EDP Sciences, 2020
This is an Open Access article distributed under the terms of the Creative Commons Attribution License 4.0, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
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