Vehicle Crash Dynamics P7

Any crash dynamic event involves impact and/or excitation. The mechanisms of impact and excitation for full vehicle crash testing and laboratory Hyge sled testing are covered in this chapter. A simple occupant ridedown criterion using kinematic relationships is formulated. This criterion specifies the minimum vehicle crush space needed when a given occupant free travel space in the compartment is specified. During the ridedown, the vehicle undergoes a deformation process which is the first collision of the event, followed by the second collision where the occupant travels and contacts the vehicle interior surface or restraint. It will be shown that...