Calculating steering rack axial forces?

AI Thread Summary
Calculating the minimum force required to turn a vehicle involves understanding the normal load from the vehicle's weight when stationary. Key parameters include the kingpin angle, scrub radius, knuckle arm, and caster angle. The discussion emphasizes the importance of self-aligning torque in this calculation. Participants are encouraged to share insights on how to effectively utilize these factors to determine the necessary axial forces on the steering rack. Accurate calculations are crucial for optimizing vehicle handling and performance.
thiru
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Hello

I tried to calculate the minimum force needed to apply on the knuckle to make a turn.

The important factor is the normal load (due to the weight of the vehicle) when the vehicle is not moving. I know the kingpin angle, scrub radius, knuckle arm, caster. But I am not sure how to proceed forward. Any help will be appreciated.
 
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Look for self-aligning torque:

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