Simulation of the Start-Up Vibrations in the Drivetrain of Commercial Vehicles 785003
The drivetrain of a commercial vehicle forms a mechanical,
torsional vibration system. Sudden changes of the torque can give
rise to large vibrations, especially when accelerating from rest.
Determination of peak moments is critical for correct dimensioning
of transmission and drivetrain components.
A theory has been developed which permits sufficiently accurate
simulation of the start-up vibrations in the drivetrain. The paper
subdivides the system into its smaller components (clutch, drive
shaft, tires, etc.) and then applies the equation of motion to the
components. Theoretical results are compared to test measurements
and the regions of theoretical validity are determined. Results are
then described for the individual drivetrain components. Emphasis
is placed on the distinction between the factors with greater and
lesser importance for the peak drivetrain moment.
G. Krisper, J. Reichweger
17th FISITA Congress (1978), Budapest, Hungary