Modifying the supporting structure can change the stiffness of the vehicle. Using a stiffness analysis, we can determine just how significant this change is.
The stiffness values for all kinds of vehicle frames have a significant impact on the vehicle dynamics.
As well as this, the manufacturer sets the clearances, joints and general vehicle structure to a certain stiffness.
For analysis purposes, the vehicle chassis is stiffened to eliminate the impact of the suspension. Forces are introduced on the laboratory test bench and the resulting deformations are measured.