Abstract:
This paper presents the design and
analysis of a test rig that is used for experimental
investigation of the transient characteristics of a
nearly completed vehicle powertrain system
equipped with an automatic transmission. The free
and forced torsional vibration of the complex test rig
is performed and compared to that of an existing car.
It is found that the first global vibration mode of the
test rig varies significantly when the gear ratio of an
automatic transmission changes. In addition, it is
shown that the dynamic characteristics of tyres and
vehicle inertia significantly affect the vehicle
powertrain system dynamics and their inclusion into
the analysis will improve the simulation accuracy.
