Khamsin Virtual Racecar Challenge 2015

Post here information about your own engineering projects, including but not limited to building your own car or designing a virtual car through CAD.
User avatar
machin
162
Joined: 25 Nov 2008, 14:45

Re: Khamsin Virtual Racecar Challenge 2015

Post

Is the question from a "realism" point of view?

They look a bit too "flimsy" to me: I would reduce the amount of taper and increase the connection area to the wing...

DTM rear wing mount example:

Image
COMPETITION CAR ENGINEERING -Home of VIRTUAL STOPWATCH

graham.reeds
graham.reeds
16
Joined: 30 Jul 2015, 09:16

Re: Khamsin Virtual Racecar Challenge 2015

Post


User avatar
CAEdevice
49
Joined: 09 Jan 2014, 15:33
Location: Erba, Italy

Re: Khamsin Virtual Racecar Challenge 2015

Post

machin wrote:Is the question from a "realism" point of view?

They look a bit too "flimsy" to me: I would reduce the amount of taper and increase the connection area to the wing...

DTM rear wing mount example:

http://www.eurocarnews.com/media/pictor ... /17311.jpg
I'm more worried about the rule compliance.
Realism is not a problem, I can run a structural simulation to verify the resistence and the vibrational behaviour (it's my job, I'm confindent about it... not the same for CFD simulations :) )

User avatar
CAEdevice
49
Joined: 09 Jan 2014, 15:33
Location: Erba, Italy

Re: Khamsin Virtual Racecar Challenge 2015

Post

They copied my wing (or I copied their one...) :D

wesley123
wesley123
204
Joined: 23 Feb 2008, 17:55

Re: Khamsin Virtual Racecar Challenge 2015

Post

CAEdevice wrote:
I'm more worried about the rule compliance.
I don't see why it wouldn't be. The rules require the wing to be mounted by max. 2 points. This is in compliance with rule K3.2

Other than that, I'd say it could classify as bodywork for any part outside of the wing box. So imo, as long as it's thickness is 10mm, it is legal. I'm not sure how big the thinnest point is across the Z-axle, but as long as it's over 10mm it should be okay. Which means it complies with K1.2
"Bite my shiny metal ass" - Bender

User avatar
CAEdevice
49
Joined: 09 Jan 2014, 15:33
Location: Erba, Italy

Re: Khamsin Virtual Racecar Challenge 2015

Post

wesley123 wrote:
CAEdevice wrote:
I'm more worried about the rule compliance.
I don't see why it wouldn't be. The rules require the wing to be mounted by max. 2 points. This is in compliance with rule K3.2

Other than that, I'd say it could classify as bodywork for any part outside of the wing box. So imo, as long as it's thickness is 10mm, it is legal. I'm not sure how big the thinnest point is across the Z-axle, but as long as it's over 10mm it should be okay. Which means it complies with K1.2
Thanks. The thickness (for meshing and realism) is 20mm.


cdsavage
cdsavage
19
Joined: 25 Apr 2010, 13:28

Re: Khamsin Virtual Racecar Challenge 2015

Post

I'd need to have a look at the model to say for sure. K3.2 states "The attachments must provide a realistic load path to the body of the car", so it's not only a matter of meeting the 10mm thickness.

User avatar
CAEdevice
49
Joined: 09 Jan 2014, 15:33
Location: Erba, Italy

Re: Khamsin Virtual Racecar Challenge 2015

Post

cdsavage wrote:I'd need to have a look at the model to say for sure. K3.2 states "The attachments must provide a realistic load path to the body of the car", so it's not only a matter of meeting the 10mm thickness.
Thanks Chris, if I decide to use that configuration, I'll prove the structural realism with a FEM simualtion (static + modal analysism, using multi directional carbon fiber). At the moment it gives some advantages, but I have other problems to solve (can't find the idea to improve the floor/diffuser efficiency from the latest race...).

MadMatt
MadMatt
125
Joined: 08 Jan 2011, 16:04

Re: Khamsin Virtual Racecar Challenge 2015

Post

Interesting Matteo! Which FEA software are you using for composites?

User avatar
CAEdevice
49
Joined: 09 Jan 2014, 15:33
Location: Erba, Italy

Re: Khamsin Virtual Racecar Challenge 2015

Post

MadMatt wrote:Interesting Matteo! Which FEA software are you using for composites?
Creo Simulate (in the past I used NEiNastran, but I don't have a license now)

User avatar
CAEdevice
49
Joined: 09 Jan 2014, 15:33
Location: Erba, Italy

Re: Khamsin Virtual Racecar Challenge 2015

Post

cdsavage wrote:A few more images of the top 3:

[...]

Image
I was wondering... where are the front suspensions?

User avatar
RicME85
52
Joined: 09 Feb 2012, 13:11
Location: Derby

Re: Khamsin Virtual Racecar Challenge 2015

Post

I assumed just removed for the purpose of that image

wesley123
wesley123
204
Joined: 23 Feb 2008, 17:55

Re: Khamsin Virtual Racecar Challenge 2015

Post

I would agree except for the fact that the other 2 shown do have the suspension arms mounted
"Bite my shiny metal ass" - Bender

JJR
JJR
16
Joined: 12 Jul 2013, 20:02

Re: Khamsin Virtual Racecar Challenge 2015

Post

It´s completly covered with body and moved 100mm upwards.

CAEdevice wrote:
cdsavage wrote:A few more images of the top 3:

[...]

http://www.khamsinvirtualracecarchallen ... or_jjr.jpg
I was wondering... where are the front suspensions?