Base Excitation Absolute Result?
I am solving transient analysis by applying base excitation to a structure there is a function in the acceleration setup that appear when I set it to base excitation called absolute result. This function if I set it to "No" the supports get fixed and the body deform about and the stresses are low as well as the deformation. when I set it to "Yes" the supports start to move from their places and showing very high stresses about 7300 MPa. I checked a guide for what is meant by absolute result, this is what I found (link at end of the post):
"The Absolute Result property is set to Yes by default. As needed, change the value to No if you do not want to include enforced motion."
I want to understand what is meant by absolute result (enforced motion), and why the stresses are so excessive, I supposed to simulate a load coming from a bump that is damped from tires and suspensions then applied to my chassis at the support point. The acceleration object load is resultant of the suspension (tabular data).