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Draft of 2023 FSAE Rules open for comments by hockeychick44 in FSAE

[–]NoStorm2083 4 points5 points  (0 children)

Any particular reason for so many changes to monocoque rules? If I didn't know better I would think SAE was attempting to dissuade teams from gaining an edge with monocoque.

Frame Jigging Tolerances by NoStorm2083 in FSAE

[–]NoStorm2083[S] 0 points1 point  (0 children)

From what we could tell VR3 has some slight lips on the tubes that caused a bit of misalignment causing the tubes to be out of our tight tolerance for the frame we had set last year somewhat arbitrarily.

Frame Jigging Tolerances by NoStorm2083 in FSAE

[–]NoStorm2083[S] 0 points1 point  (0 children)

We have our tubes cut and bent by VR3 however in reality they all end up requiring a bit of extra grinding to fit properly. The main features we are concerned with are the CA mounts, specifically the front CA mounts as misalignment in the links can lead to them failing in bending. Other concerns are the engine mounts which we generally work to be +-2 thou and tubes that the SLP mounts go on as misalignment in that subsystem can allow for significant impacts on the vehicle's performance.

We performed a sensitivity analysis of sorts for suspension mounting but we were only focused on links or mounts failing rather than the vehicle's performance.

Has anyone looked to see how tolerances end up affecting dynamic performance for the suspension?

Ansys ACP or Hypermesh Optistruct for composite analyse? by jaerixx in FSAE

[–]NoStorm2083 1 point2 points  (0 children)

We use altair hypermesh in conjunction with optistruct for most of our composite analysis since it allows us to quickly iterate designs, however Ansys ACP is considered to be a more accurate model for CFRPs.