Scrub and Geometry

Computes the scrub radius, effective caster angle, and toe angle for a half or quarter car suspension model.
Input:
REQ/id, FUNCTION = USER (1108,m6id,m7id,m9id,m10id,m11id)
where:
 
 
Description
m6id
=
id of MARKER at point 6 (lower ball joint)
m7id
=
id of MARKER at point 7 (upper ball joint)
m9id
=
id of MARKER at point 9 (wheel center)
m10id
=
id of MARKER at point 10 (tire contact patch)
m11id
=
id of MARKER at point 11 (spindle alignment point)
Request File Output:
Column Number Output:
1. Scrub radius (mm)
2. Effective caster angle (deg)
3. Toe angle (deg)
4. (not used)
5. (not used)
6. (not used)
Notes on Input and Output:
There is no particular orientation required for the five MARKERS used in this routine. Note that this routine is only applicable for a half or quarter suspension model.