Definition of Squat and Nose-dive :
Typical motion of many Sports Utility Vehicle which has high CG location.
・Squat ; Front lift up and Rear sag down when accrelatration
・Nose-dive ; Front sag down and rear lift up when braking
----------------------Dynamic analysis and simulation by WorkingModel2D-------------------------------------------
----------------------Experimental analysis by Rigid Body Data Enhancement(*) of ModalVIEW+ ---------------------
(*) Advantage of Rigid Body Data Enhancement
It solves the problem of sensors which has distortion because of its poor S/N ratio
and/or transverse sensitivity.
Also 6 DOFs of rigid body can be obtrained by using the least square method
to the measurement data. Any dependent DOFs of rigid body can be calculated
by using the constraint equation.
-------------------------Dynamic analysis and simulation on a chassis dyno by WorkingModel2D---------------------
On a chassis dyno it can be seen the same pitching motion of the road test but
no acceleration can be seen on back and forth direction.
Instead of that the same acceleration can be calculated by the tension of
the constraint rod. This is just because of F=MA.