3D Models

Here are our CFD links and discussions about aerodynamics, suspension, driver safety and tyres. Please stick to F1 on this forum.
zac510
zac510
22
Joined: 24 Jan 2006, 12:58

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manchild wrote:
bernard wrote:Reca, in your design I think the front wing mounting is a nice idea. The way it leaves the lowest element clean, free of any disruption. I wonder why we haven't seen that in reality yet. It seems a promising idea. :-k
I think it’s because than upper elements couldn’t have adjustable angle.
I reckon it is because then the uppermost elements won't bend backwards at high speed (lowering the A of A!).

Reca
Reca
93
Joined: 21 Dec 2003, 18:22
Location: Monza, Italy

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Well, from some of the comments it seems to me that at the moment my model looks too much similar to the 248 F1... time for a new livery ?
West wrote: If you switched the direction of the FWEP (i.e., give them a 180 and bolt them on the opposite ends), it would more match the 248 test car.
For the FWEP the inspiration is, as evident, the Renault, wasn’t trying to copy the wing now on the 248 (ie the F2005 one), although amongst the many versions I made there’s also a FWEP similar to the Ferrari one.
As for the time needed, I started modelling, with small CAD experience (mainly 2D) almost two years ago (working almost exclusively on weekends) but until early weeks of 2005 there wasn’t a complete car, just several separated parts. Then I put them together, added a model of the V8 engine and from there I started to refine each part, now almost nothing is as it was one year ago or even just few months ago, probably only the T-camera above the airbox is same as the original one, everything else was modified or restarted from scratch more than once. Certainly if I had to start a brand new model now, even without saving a single part from the old one, it would take me lot less time to make (also because I should spend lot less time measuring pics and reading rules to have a precise idea of dimensions), but honestly I can’t tell how much.
Alan wrote: Any chance of having the CAD file as an IGES so that I can do CFD on it ?
Sorry, I don’t feel like I want to share the CAD files. Anyway, if I wanted to do CFD (but the model isn’t good enough for it at the moment in term of tolerances, holes etc etc), I’d prefer to do it by myself, that wouldn’t be a problem.
manchild wrote: Reca, did you try to swap surface color and tyre color?
Do you mean darker tyres and lighter ground ? I did try both, the lighter ground doesn’t look good to me, especially because it makes the red look almost pink in the reflection. Anyway I’ll make a rendering this way tonight and I’ll post it possibly tomorrow so you can see it and judge by yourself.
As for the tyre, I tried darker tyres and I like them, only downside is they are a bit too much different from suspension arms, underfloor etc etc. When I tried to make these parts darker too the effect was better and more “real”, but then you can’t see equally well the shape of the parts, good for a F1 team not wanting others to copy, not for me since the shape is what I’m mainly interested in seeing, hence I kept them not too dark.
zac510 wrote: I reckon it is because then the uppermost elements won't bend backwards at high speed (lowering the A of A!).
To what I said in previous post (the uppermost element is adjustable and it’s enough to adjust wing characteristics, being it by manual adjustment or flexing) and without forgetting that solutions I adopted on that model are mainly focused on a modelling exercise than an aerodynamic/engineering exercise (people suggest to keep hobby unrelated with daily job...) I can add one thing. The other day I was looking at a few pics of the McLaren front wing and it seems to me that also on that wing only the third element is adjustable; the third element has an evident hinge at the tip while there’s no hinge on the second element that looks connected to the endplate just like the principal one, meaning without (physical) degrees of freedom. Furthermore the little metallic part connecting the two flaps is apparently articulated to allow relative movement of the parts. I repeat, I’m not sure as I just looked at few pics since I never noticed it before and don’t know if maybe it’s a feature only of a testing wing, but my impression is that on the McLaren wing only the uppermost element is adjustable.

Reca
Reca
93
Joined: 21 Dec 2003, 18:22
Location: Monza, Italy

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A couple pics more, few differences, mainly on the underfloor, engine cover, bargeboards and, again, new mirrors (Ferrari solution really makes lot of sense ;-))
I also changed the colors as manchild suggested (trying to minimize the “pink reflection”), is it better ?

[IMG:152:130]http://img524.imageshack.us/img524/3762 ... 3jg.th.jpg[/img]

[IMG:152:130]http://img95.imageshack.us/img95/3018/0602067wq.th.jpg[/img]

manchild
manchild
12
Joined: 03 Jun 2005, 10:54

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What's wrong with rear end of engine cover (where cutout should be). Looks like sliced vertically with some peek in the middle?

It wasn't like that on your previous cars :?

Reca
Reca
93
Joined: 21 Dec 2003, 18:22
Location: Monza, Italy

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you are just seeing the inner face of the endplate (and a piece of the lower element of the wing) thru the cut.

Guest
Guest
0

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Nice CAD Model!

The front wing dont meet the FIA rules as a starter. :wink:

Reca
Reca
93
Joined: 21 Dec 2003, 18:22
Location: Monza, Italy

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Some further modifications, not many (very busy week) and mainly on the rear end, and a first attempt to a, still very simple, new livery. It’s just a test and I’m not completely satisfied, I think I still prefer the normal one, what do you think ?
[IMG:152:130]http://img484.imageshack.us/img484/8981 ... 8pn.th.jpg[/img]
[IMG:152:130]http://img153.imageshack.us/img153/4717 ... 8yn.th.jpg[/img]
Guest wrote: Nice CAD Model!

The front wing dont meet the FIA rules as a starter. ;-)
Can you please tell me which rule it doesn’t satisfy ? And about the other problems (I assume there are since you say “as a starter”), if you can indicate them I’ll try to fix the model. Thanks.

BTW, here a pic of the wing inside the box defined by FIA rules, I made it a few weeks but the only difference compared with the pics above, besides the livery, is a slightly different uppermost element with a bit larger chord close to the centre, it’s well inside the FIA box anyway :
[IMG:152:130]http://img129.imageshack.us/img129/78/fwrules2we.th.jpg[/img]

Guest
Guest
0

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OK then, what about the distance between the end plate and the wheels if viewed from the top?? It is not correct, needs to be reduced.

There are a lot of other bits and pieces I can see but hey nice try!

Reca
Reca
93
Joined: 21 Dec 2003, 18:22
Location: Monza, Italy

Post

Guest wrote: OK then, what about the distance between the end plate and the wheels if viewed from the top?? It is not correct, needs to be reduced.
It’s at the minimum allowed distance.
3.11 Bodywork around the front wheels :

With the exception of brake cooling ducts, in plan view, there must be no bodywork in the area formed by two longitudinal lines parallel to and 400mm and 900mm from the car centre line and two transversal lines, one 350mm forward of and one 800mm behind the front wheel centre line.
The rear edge of the box in the pic above is the front wheel centreline and the rear edge of the endplate is 350 mm in front of it (wheel radius is 330 mm), minimum distance allowed by rules.

Anyway, even if it was more distant, as you seem to believe, it wouldn’t be against rules, if it was closer to the wheel, as you suggest it should be, then it would be illegal.

kilcoo316
kilcoo316
21
Joined: 09 Mar 2005, 16:45
Location: Kilcoo, Ireland

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zac510 wrote:
manchild wrote:
bernard wrote:Reca, in your design I think the front wing mounting is a nice idea. The way it leaves the lowest element clean, free of any disruption. I wonder why we haven't seen that in reality yet. It seems a promising idea. :-k
I think it’s because than upper elements couldn’t have adjustable angle.
I reckon it is because then the uppermost elements won't bend backwards at high speed (lowering the A of A!).
It should actually result in more bending backwards as there is an easier flexed element holding the wing as well as the wing itself.

West
West
0
Joined: 07 Jan 2004, 00:42
Location: San Diego, CA

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Can you try a color scheme of blue, like Ligier? Practically half the grid uses red and white, unless you were looking towards the Ferrari look.

You should try posting pics of different colors.
Bring back wider rear wings, V10s, and tobacco advertisements

Reca
Reca
93
Joined: 21 Dec 2003, 18:22
Location: Monza, Italy

Post

[quote=”West”]
Can you try a color scheme of blue, like Ligier? Practically half the grid uses red and white, unless you were looking towards the Ferrari look.

You should try posting pics of different colors.
[/quote]
As I explained the reason I choose red & white is these are Monza’s colors, then red is color of Italian cars, so that one would be my preferred choice.
Anyway I modified the pics with Photoshop to try different colors with both white wings and black wings (although the problem with black wings is that you can’t see details). BTW if you have photoshop or similar you can very easily modify them to try colors I didn’t include :
[IMG:152:113]http://img112.imageshack.us/img112/5342 ... 8gi.th.jpg[/img]
[IMG:152:122]http://img394.imageshack.us/img394/7633 ... 8ln.th.jpg[/img]

That’s just to give an indication, in case you have a precise scheme suggestion (for example color X with wings of color Y, mirrors J etc etc) just post it and I’ll try it, I’m open to any kind of suggestion for both the livery and the car itself.

Meanwhile I’m still working on a few modifications, but although sometimes these involve complete redesign of a part (to make it in a more clever or precise way), they are hardly noticeable because the shape doesn’t change that much.

West
West
0
Joined: 07 Jan 2004, 00:42
Location: San Diego, CA

Post

I like the blue/white one. I just always liked the Ligier color scheme, especially in 96.

Schumigo, did u run a CFD on the "wing" i made?
Bring back wider rear wings, V10s, and tobacco advertisements