Transcription of Tech Tip: Steering Geometry - OptimumG
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Tech Tip: Steering Geometry - OptimumG
tech Tip: Steering GeometryDesigning Steering GeometryWhen you re designing Steering kinematics, the goalis to orient the tire to the road in the optimal orienta-tion. But, how do you know the optimal orientation?Tire data, of course!One of the basic decisions when designing a steer-ing system is how much Ackermann you want. Theanswer to this is determined directly by the tire char-acteristics, and you can answer this question by us-ing OptimumT in a clever , let s try it! We will design the Steering geom-etry for a small autocross car (210kg) as an data that we ll use was collected at Calspan bythe FSAE TTC (Tire Testing Consortium). Sincewe re using a race car for the example, our goal is togenerate the maximum lateral force from the ll start by taking raw tire data that was collectedon a tire testing machine and import it into Opti-mumT. Next we ll fit a Pacejka 2002 tire model tothis data using the OptimumT Model Fitting more information about this process, please re-fer to the OptimumT documentation.
Tech Tip: Steering Geometry Figure2: Maximum lateral force versus load • F zrandF zlaretherightandlefttirevertical loads • F yrand F ylare the right and left tire ...
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