Scrub Radius
The distance from the point at the intersection of the kingpin axis and the ground plane to the line of intersection of the wheel and ground planes. Scrub radius is positive if the kingpin axis intersects the ground inboard of the wheel. SVC computes scrub radius for the front suspension only.
Computed by:
SVCCTR
Input Variables Used:
■Left and right kingpin marker identifiers (idksil, idksir)
■Left and right front wheel center marker identifiers (idwcfl, idwcfr)
■Global origin marker identifier (gblm)
■Ground height (ght)
Method:
SVC uses the SYSARY utility subroutine to retrieve the positions of the wheel center and kingpin markers with respect to the ground plane. SVC next computes the intersection point of the kingpin axis and the ground plane, and the wheel/ground intersection line. The scrub radius is the difference between the distance from the ground origin to the line and the distance from the origin to the point. SVC assumes the z-axis of the kingpin marker points up the kingpin axis and y-axis of the wheel center marker is parallel to the spindle axis. SVC also assumes the global origin marker lies somewhere inboard of both the wheel/ground and kingpin-axis/ground intersections.
Scrub Radius
