Steering Geometry 1

1.Calculate the following geometric parameters:  

i.Caster=5.38 deg

ii.Mechanical trail=9.41 mm

iii.Kingpin inclination angle=10.1 deg

iv.Scrub radius=32.35 mm

v.Kingpin lateral offset or spindle length=85.29 mm

2. Calculating the restoring moment

Moment arm is the sum of mechanical trail and pneumatic trail.

Mechanical trail=9.41 mm

Penumatic trail=25 mm

Moment arm= 9.41 + 25 = 34.41 mm

Lateral Force=2000 N

Restoring Moment= 2000 * 34.41 =68980 Nmm

3. How we can change the sign of scrub radius ?

For changing the sign of the scrub radius we can give a less value to the Y ( pointing towards the right) cordinate of the UCA knuckle ball joint.