Forum Discussion
Ron_Gratz
Jun 08, 2005Explorer
bettered wrote:
The only way the HA could be moved from the back link is if the TT tires are translated sideways (the hockey puck scenario). But as I explained in my earlier post, the forces required to do this are not trivial (say 400# minimum) and are unlikely to be realized in any but an extremely unlikely situation.
Ed B
Ed, There is a difference between tire static friction (when the tire is not rolling) and the lateral force generated by a tire when it is rolling. A rolling tire does not generate lateral force unless is has some degree of "slip angle" relative to the direction of travel. This is why a moving TT swings when subjected to a lateral force. The TT must develop enough yaw angle to generate sufficient side force to counteract the imposed lateral load. The side force is proportional to the tire's cornering stiffness, the load on the tire, and the amount of yaw.
Ron
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