Adams Car Package > Adams Car > Appendix > Special Requests > Front Suspension Anti-lift and Anti-squat

Front Suspension Anti-lift and Anti-squat

Computes the anti-lift and anti-squat of a front suspension.
Input:
REQ/id, FUNCTION = USER (1112,m9id,mw10id,mb10id,wb,pbrk,cgh)
where:
 
 
Description
m9id
=
MARKER id for point 9 (wheel center)
mw10id
=
id of a MARKER at point 10 (tire contact patch) attached to body
mb10id
=
id of a MARKER at point 10 (tire contact patch) attached to wheel
wb
=
vehicle wheel base (mm)
pbrk
=
percentage of braking at front axle (between 0 and 100)
cgh
=
height of vehicle center of gravity (mm)
Request File Output
Column Number Output:
1. Percent anti-lift for an independent front suspension (%)
2. Percent anti-lift for a solid axle front suspension (%)
3. Percent anti-dive for front suspension (%)
4. Roll center height for front suspension (mm)
5. (not used)
6. (not used)
Notes on Input and Output
This request can only be accessed for half or quarter vehicle suspension models. Also, the analysis must be run using "kinematic analysis" since the routine uses velocity vectors to establish the location of the instant centers.