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Torsion Bar Suspension Test
07
Reimagined bell crank/rocker for an FSAE car with torsion bar suspension.
As a recruitment project for my FSAE team, I researched and presented into the feasibility of using torsion bars instead of springs inside our car. Used at much higher levels of racing, torsion bars prove to be a very interesting prospect as not only would they allow for easily changeable spring properties, but they more importantly could be manufactured in-house.
Since the competition rewards beneficial initiatives taken by the teams to manufacture parts themselves, this would ideally give us customizability and a great learning experience. However, not only was the rocker design largely shaken up, but the location of the torsion bar supports would add too much unnecessary weight. Furthermore the wear life of torsion bars would hurt their abilirt to be used for extended periods.


This rocker also had simulations performed on it using the typical load cases of the car and more specifically on the current rockers. These rockers used a similar style of outer support to the current ones, but the area surrounding the bearing is largely different than in previous iterations.

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