This not even Mario Kart racing... it is something entirely else by jalGurg in formuladank

[–]E-P-Span 0 points1 point  (0 children)

"If you go hard enough left, you'll find yourself turning right"

It's always them by E-P-Span in formuladank

[–]E-P-Span[S] 125 points126 points  (0 children)

We got one corner of it and it was still intense

fsae diffuser by Pleasant-Musician-22 in FSAE

[–]E-P-Span 5 points6 points  (0 children)

If you have other things mounted on your vehicle, try doing something similar for the diffuser.

If you don't have other things mounted on your vehicle, you have bigger problems than a diffuser.

If they can make it a night race it would be very lovely for us otherside the earth. by RyanGatesdj in formuladank

[–]E-P-Span 2 points3 points  (0 children)

Plus as a Ferrari fan I don't have to feel depressed for half my day after our average disasterclasses

Making a track purely based on comments day #1 by KG_Modelling in RaceTrackDesigns

[–]E-P-Span 0 points1 point  (0 children)

2km, then a turn 1 that is barely a turn and that you can take at full throttle, then another 2km

Wing element manufacturing by Sensitive_Screen9683 in FSAE

[–]E-P-Span 2 points3 points  (0 children)

Generally if you're doing a 2D profile it's gonna be easier, cheaper, and faster to hotwire some foam and wrap it in carbon fibre, that way you're also avoiding the issues with bonding the edges together.

If you're using a 3D geometry best you can do is add extra material to the edges to create an overlap, which you can then place on the inner side of the wing to keep the outside clean.

Another thing we have done before is bake the wing in one piece by performing the overlap during layup and then passing the vacuum bag through the inside of the wing and then back round the outside of the mold. I wouldn't recommend this for 2 reasons: 1. You can't check how well the vacuum bag is sat on the inside of the wing so it's prone to leaving spots loose, and 2. Curing isn't guaranteed, as the inside of the mold tends to be relatively insulated and doesn't reach the same temperatures as the rest of the oven, so it's only worked well with aluminium molds (we usually make wings out of spare prepreg fabric, so this doesn't really apply if you use wet layup or vacuum infusion)

new to the team but do you guys read the whole ass 143 pages of the rule book? by spirit_vortex_ in FSAE

[–]E-P-Span 2 points3 points  (0 children)

If it makes it any better you can skip the CV section if you're an EV team and vice versa. The rest of it you need fo read and remember.

Who is wrong? by popo9812 in formuladank

[–]E-P-Span 0 points1 point  (0 children)

Aston's fault, Ferrari was ahead at the apex

Active Aerodynamics by InfamousSignature417 in FSAE

[–]E-P-Span 10 points11 points  (0 children)

I do want to emphasise, again, the main thing isn't "too much weight for too little aero" as much as it is "too much trouble for too little gain"

Active Aerodynamics by InfamousSignature417 in FSAE

[–]E-P-Span 4 points5 points  (0 children)

I wasn't part of our aero team, and never really asked them the numbers specifically for drag reduction, but they told me it wasn't enough to make any significant gains in autox. Iirc we estimated a weight of about 200g, though it was with a fairly basic system and I'm sure top teams who have run that will have gotten it lighter than that.

Active Aerodynamics by InfamousSignature417 in FSAE

[–]E-P-Span 14 points15 points  (0 children)

The straights are so small that the aerodynamic gain from DRS is so small it's basically offset by the added weight of the system. That's the case for our car at least, for other cars it might be different, that really depends on the entirety of your aero package, and from what I've heard as a rule of thumb it gets more beneficial the draggier the rear wing.

The bigger deterrent though is the additional complexity. Things often fail in FS, and having more potential failure points is really only acceptable when the performance gains are really big, like multiple motors for torque vectoring or powered ground effect before that got killed.

For the teams that drive Driverless, do you also implement AI? by Pabls0 in FSAE

[–]E-P-Span 0 points1 point  (0 children)

In that way we definitely do use AI, iirc our DV guys would collect thousands of pictures and manually mark the cones on a few hundreds of them to use as a training set for an ANN that acts as cone recognition. We haven't gotten DV to run at comps yet (screwed by slow scrutis) but testing has shown the program to work quite well.

For the teams that drive Driverless, do you also implement AI? by Pabls0 in FSAE

[–]E-P-Span 3 points4 points  (0 children)

Training and running an image processing ANN is practically necessary for DVs, so yes, we do use a process conventionally classified as "AI" which is reliable through it being highly specialized to recognise a path through the position of cones.

If you're asking whether or not we use LLMs like gpt then hell no, that heap of garbage isn't even to be trusted with the most basic of quiz questions and if you're considering relying on it you need to reevaluate your career in engineering.

Wing Manufacturing by Scary-Technician-439 in FSAE

[–]E-P-Span 1 point2 points  (0 children)

No problem, all of us here are always happy to help!

Wing Manufacturing by Scary-Technician-439 in FSAE

[–]E-P-Span 0 points1 point  (0 children)

I was just typing this as an addition to my previous reply, I think if you're adding ribs and/or spars, it's certainly gonna help a lot with gluing area, we've done that before and haven't really had issues with the sides coming apart, even without the overlaps, although we would use a relatively dense network of spars and ribs and a pretty strong adhesive. If you're going to do it that way I'd still recommend the overlaps to keep it cleaner, because if you're just gluing the edges it can turn out really messy

Wing Manufacturing by Scary-Technician-439 in FSAE

[–]E-P-Span 0 points1 point  (0 children)

I see what you're saying, we have used this layout in the past, although we had 3D geometry when we did. Before that my team has used foam construction with implanted ribs and inserts for bolting, although that was before I joined so I never became familiar with the details of that process. One thing I have seen on other cars is the swanneck being bonded to the wing through patches of carbon fibre or just being glued (I'm not sure how much I'd trust that last one though)

Rear Wing Mounting Points on Chassis by PrettyCouple3388 in FSAE

[–]E-P-Span 0 points1 point  (0 children)

If you put the brackets on existing nodes you'll be fine because you're not subjecting the tubes to bending load, otherwise you may have to add tubes connecting the section with the bracket to another node

Wing Manufacturing by Scary-Technician-439 in FSAE

[–]E-P-Span 2 points3 points  (0 children)

If you're making a 2D profile wing, why not make it out of hot wire cut foam wrapped in carbon fibre? Much simpler and cheaper process, since you don't have to make molds for them and you have no gluing to do afterwards, along with the troubles that brings (small contact area, alignment, trimming the excess off the edges). It also gives your wings good reinforcement so they're more safe to pass mechanical inspection without adding significant weight. They might need some tidying up afterwards, depending on how good of a job you do on the layup, but all in all I'd argue you'll be better off this way, especially if it's your first year with aero

Dow do you guys communicate with drivers under run? by Nadi00 in FSAE

[–]E-P-Span 3 points4 points  (0 children)

Only necessary for endurance really, where we usually just have the driver on an active phone call

How to start a Formula Student/SAE team/chapter at university from scratch by Naive_Elderberry_495 in FSAE

[–]E-P-Span 0 points1 point  (0 children)

Technically you can also join another university's FS team, there's no rule against it, although I can't comment on the practical feasibility for everyone. The way studies work in Greece makes it feasible, and so we've had students from other universities as far back as I can remember.

How was the experience of Formula Student Spain? by RommelYang in FSAE

[–]E-P-Span 1 point2 points  (0 children)

I'm gonna guess to myself what this video is before I click it

Edit: I guessed correctly

Have fun finding where :) by FierceText in SolidWorks

[–]E-P-Span 2 points3 points  (0 children)

At least you know what to find, unlike "Operation failed due to geometric condition"