[KVRC] Khamsin Virtual Racecar Challenge 2016

[LVDH]

The thing is that some people like to draw and others, including me, cannot do it because then it looks like a 5 year old did it. But if it works for him it is OK.

[CAEdevice]

I sometimes have problems, when writing on this forum, to match some nicknames to their KVRC team/car. It would be useful to add a column in the KVRC team list with the nickname of its owner, or to put the team name in the signature.

[julien.decharentenay]

Will need a few faces filling in as I had to import in to Blender then save as .dae to import

I never thought of this workflow. Great idea - SketchUp STL importer is so slow.

Matteo, I am struggling as well to match teams and people...

[julien.decharentenay]

Hi,

As an advance message the contact with SimScale is progressing. We are planning to run a joint workshop with:
- onShape (THE online CAD package);
- SimScale.

With a guest appearance of Richard (if he agrees to it)... I will do my best to stay hidden. This is exciting and should allow two things: (a) some introduction to the use of onShape/SimScale for your design - their platforms have some free account that could be used and (b) some exposure to the challenge.

for those keen to explore onShape, I have uploaded the KVRC 2016 parts into an onShape model that can be viewed at https://cad.onshape.com/documents/7ffa1 ... 7876fcaf1c.

[CAEdevice]

Very good news ! I tested onShape and in my opinion is quite a good tool to model the KVRC cars (much better than SketchUp). SimScale is interesting from the simulation point of view.

[Alonso Fan]

So I've finished my car. Please can someone confirm exactly what I need to submit on the deadline? I'm confused about the cooling components and how to submit them

[cdsavage]

So I've finished my car. Please can someone confirm exactly what I need to submit on the deadline? I'm confused about the cooling components and how to submit them

If you're using the introductory subclass then the only thing you need to submit is the geometry that you want to add to the supplied parts (don't include the supplied parts). You may also include a wing-front and wing-rear part, but this is completely optional, you can just include the front and rear wings together with the body file.

If you're not using the introductory subclass, then have a look at this file: http://www.khamsinvirtualracecarchallen ... _parts.zip. It contains a body part, along with the engine-intake, engine-exhaust, cooling-intake and cooling-exhaust parts. This is roughly how the submission should look, but this is missing a few parts - these can be found under K1.4 in the rulebook. If you are using K4.1 option 1, then you need to include the area template - this should look roughly similar to one of the intake/exhaust surfaces, but obviously meeting the rules specified in K4.1. If you are using K4.1 option 2, then there should be hx-shape parts instead of the area template part. Finally you have the option of using a wing-front and wing-rear part as above.

Keep in mind that the submission needs to be a single archive file (zip, rar, 7z etc) and the files inside need to be in STL format. Also if you've moved the parts allowed in K2.1, then you need to include a text file inside the archive specifying the offset that you've applied in the Z-axis.

[Alonso Fan]

Thank you for your informative and quick reply. However I have designed my own bodywork and intend to be a full participant

What files does the submission require for cooling inlets etc?

[cdsavage]

Thank you for your informative and quick reply. However I have designed my own bodywork and intend to be a full participant

What files does the submission require for cooling inlets etc?

It's everything listed in K1.4 in the rulebook:

If you're not using the introductory subclass, then have a look at this file: http://www.khamsinvirtualracecarchallen ... _parts.zip. It contains a body part, along with the engine-intake, engine-exhaust, cooling-intake and cooling-exhaust parts. This is roughly how the submission should look, but this is missing a few parts - these can be found under K1.4 in the rulebook. If you are using K4.1 option 1, then you need to include the area template - this should look roughly similar to one of the intake/exhaust surfaces, but obviously meeting the rules specified in K4.1. If you are using K4.1 option 2, then there should be hx-shape parts instead of the area template part. Finally you have the option of using a wing-front and wing-rear part as above.

[Alonso Fan]

Thank you for your informative and quick reply. However I have designed my own bodywork and intend to be a full participant

What files does the submission require for cooling inlets etc?

It's everything listed in K1.4 in the rulebook:

If you're not using the introductory subclass, then have a look at this file: http://www.khamsinvirtualracecarchallen ... _parts.zip. It contains a body part, along with the engine-intake, engine-exhaust, cooling-intake and cooling-exhaust parts. This is roughly how the submission should look, but this is missing a few parts - these can be found under K1.4 in the rulebook. If you are using K4.1 option 1, then you need to include the area template - this should look roughly similar to one of the intake/exhaust surfaces, but obviously meeting the rules specified in K4.1. If you are using K4.1 option 2, then there should be hx-shape parts instead of the area template part. Finally you have the option of using a wing-front and wing-rear part as above.

Thanks, which is easier to use, interns of simulation? Option 4.1 or 4.2?

[cdsavage]

Thank you for your informative and quick reply. However I have designed my own bodywork and intend to be a full participant

What files does the submission require for cooling inlets etc?

It's everything listed in K1.4 in the rulebook:

If you're not using the introductory subclass, then have a look at this file: http://www.khamsinvirtualracecarchallen ... _parts.zip. It contains a body part, along with the engine-intake, engine-exhaust, cooling-intake and cooling-exhaust parts. This is roughly how the submission should look, but this is missing a few parts - these can be found under K1.4 in the rulebook. If you are using K4.1 option 1, then you need to include the area template - this should look roughly similar to one of the intake/exhaust surfaces, but obviously meeting the rules specified in K4.1. If you are using K4.1 option 2, then there should be hx-shape parts instead of the area template part. Finally you have the option of using a wing-front and wing-rear part as above.

Thanks, which is easier to use, interns of simulation? Option 4.1 or 4.2?

It depends on what you've modeled: option 2 requires that you model the internal ducts, whereas option 1 only requires the inlet and outlet faces without any internal bodywork. If you haven't finished the model yet then option 1 will be simpler.

[Alonso Fan]

Awesome. So if I choose option 2 will i have to submit the ducts as a separate stl file or will the ducts be part of the bodywork stl?

[cdsavage]

Awesome. So if I choose option 2 will i have to submit the ducts as a separate stl file or will the ducts be part of the bodywork stl?

They should be part of the bodywork, in the body.stl file.

[RicME85]

Think I have a car that might be competitive but boy is it hard to get the balance right!

[LVDH]

Yes and no. For the high down force my DoEs and optimizations from last year showed that just maximizing downforce more or less puts the CoP into right right position.
For the efficiency races it will be more difficult.
But then again yes, getting the last cm right is very difficult.