The n-Post Shaker event simulates a vehicle supported on a test-rig by
posts.
The posts can be attached to the wheels or to any other point
of interest on the vehicle. The event can be added to a new or existing full-vehicle model
with any number of axles, including two and three wheeled vehicles. Input signals drive the
posts to excite the vehicle. The vehicle’s response in the form of predicted loads and
accelerations may be used to assess durability and ride. The input signals driving the posts
can be displacements or forces and moments. The signals may be synthesized or come from
testing. Acceleration data from testing must first be double integrated and converted to a
displacement input, and a signal manager included can perform the integration. In addition to
the standard outputs for this event, the loads for any vehicle components can be output as
needed for durability analysis.