Apparatus for generating a dynamic force response that simulates a dynamic
force typically generated by an experimental event. A cam having a profile, such
as a serrated profile, rotates about an axis according to a rotational speed profile.
A braking device operatively connects to the cam, such as a follower biased against
the cam, for generating a braking force resisting rotation of the cam. A measurement
device measures the braking force on the cam to generate the dynamic force response.