A machine which simulates the shock and vibration environment encountered by equipment transported in wheeled vehicles is described. Information on the acceleration inputs of the cargo platform of a 2-1/2 ton 6 × 6 military truck subjected to the excitation of this machine is presented. Wheel bounce causes more randomness in the magnitude of excitation than might be expected. Wheeled-vehicle and shipboard-shock environments are compared.
Analyses of records obtained will provide frequency-amplitude spectra which can be compared to spectra obtained from actual field testing.