Large "undamped" masses of live axles have been
thought to cause large fluctuations in wheel-loading. Actually,
these fluctuations cannot be accounted for by weight differences
between live and dead axles, but rather by rotational vibrations
about the longitudinal axis, also known as wheel tramp. The paper
analyzes the irregularity functions that govern this vibration, not
only the previously understood longitudinal ones, but the
transverse as well.
The paper develops the mathematical formulation of forces and
movements and subsequently applies the results to wheel-loading and
lateral forces. The irregularity functions are described and their
effects on wheel-loading, lateral forces, and frictional contact
are compared. An example of the application of this computational
method is given. The derivations can be applied to different
suspension systems.
Author(s):
Manfred Mitschke
Pages: 10
Event:
17th FISITA Congress (1978), Budapest, Hungary
Related Topics:
Suspension systems
Axles
Vibration
Wheels
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