Radial force variation with stiffness nonuniformity (a) carcass ply

Radial Force Variation. EP1435516A1 Radial force variation prediction method, tangential Force variation for a DC01 steel sheet of thickness 1.15 mm with wall angle 60°, tool diameter 25 mm, depth increment 1.06 mm plotted against 'g', the length of the generating line of the cone; F z is the axial force, F r the radial force and F t the tangential force [51] [with permission from publisher]. The wheel is rotated at a low speed and measures the variation (pounds.

It may be of benefit to have the lowest RFV assembly to the front left corner . The radial force variation can be expressed as a peak-to-peak value, which is the maximum minus minimum value, or any harmonic value as described below

(Color online) A schematic for the action of uniform radial force ω

• If a road force/balancing machine is used, record the radial force variation (RFV) on the worksheet at the end of this bulletin Some tire manufactures mark the sidewall with a red dot to. • Measure radial force variation and radial runout

Variation of radial force (F x ) with spindle speed and feed. High values of RFV for a given tire reflect a high level of manufacturing variations in the tire structure that will impart ride disturbances into the vehicle in the vertical direction. As the tire rotates, the spring elements of the tire make contact with the road surface and are compressed..

Figure 7 from A mechanical model that can calculate the radial force. A variation between 3,900 and 4,100 N (880 and 920 lbf) would be characterized as an 200 N (40 lbf) radial force variation (RFV) Important: The completed worksheet at the end of this bulletin must be attached to the hard copy of the repair order