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Claude,

Thanks for helping but your answer was confusing again; I think that is your teaching style though, you would rather people discover these things 'on their own', which is fair if you think...

I'm OK with this, it's a neat idea, curious how it makes it into the diagram.
For my 'lateral accel'/'lateral force' axis on your version of the YMD, would I only keep forces that are radial to this...

Claude,

Can you please explain this again, maybe in a different way? I never quite catch onto what you want from this when you explain it as a 'yaw center'.

I am confused if you mean

1) the...

Neat idea. Personally never seen that surface fail, except once when that was the least of the issues compared to everything else that broke...


If I recall DGBB are OK for axial loads, maybe not...

Sorry Joshkb, sometimes Z will write you a personal textbook to help, and sometimes you get this.


I think they look fine, and you seem to be well capable of manufacturing it. Neat use of the 3d...

This is great it has been too long since we had an interesting VD thread!

The Venus838 is a good choice Adam, as far as I can tell that’s the smoking hot product for true 50Hz position in a...

Got a second opinion on the clarity of the slide; this has some visual improvements but all the same calculations.

CWA,

haha, fair enough! That edit should be a better image, and I corrected part of the small shear assumption calculation.

Let me know if that is not better - again?

As always, I'm sure this has errors, please let me know - if your response requires Book/Chapter/Verse heading I likely won't read it all.

I'm not sure, maybe this has been discussed 'ad nauseum' but I don't see much data about it. Google search only found a couple news articles.

I threw some notes together and made a plot of...

I have a 100kN tensile testing machine.

If someone made the jig I would gladly test any rod ends provided and organize data.

For a jig I picture three setups that cover relevant loads:

1)...

Here are some optimization results to get you thinking.

'Stability' should be called 'ride' probably.
'Grip' in this case is almost, but not quite, related to tire deflection.

Please be...

Ritwikdas18,

I did mean 'wheel rate' or 'ride rate' when I said it was too stiff. Really I didn't even look at your installed spring, just know that your natural frequency is too high, by ~50%...

Again, I said arguing over this is not fruitful. If you apply a practical force to anything in real life, the only way it can truly instantaneously react is by its mass. A spring requires...

Z,

I'm pretty sure mass (+ maybe coulomb friction) is the only thing that transmits the 'sudden impact ... at the wheel' if we're being pedantic.
The other effects all require motion.
But, I...

"impact" i.e. "impulse"

Swiftus,

Thanks!

Does he shift out of neutral without manually releasing the clutch?

Seems like he presses a button on the dash and zippp...

Would Dr. Paasch or anyone be willing to explain GFR's magic clutch?!?

Flawless launch and doesn't seem to pull the clutch at the end of the lap.
There's a video from autocross on their facebook...

Erik,

Looking at it again, I think you were correct - should be

apx= ... - (r^2*X)

Good catch, thanks!

Dang you write some long posts... Wish I had time for that.

"No one has pointed out his errors"

Thanks for reviewing this, seems other people here are contributing more than criticizing, but...

Claude,

This is very interesting, I don't have access to slip sensors so if true this is disconcerting; would you mind elaborating to make sure this is correct?

'Of which we took the vx'

Did...

Yes that's fair for this example. In regards to the original question 'tables vs math' the size still depends on which tables you use, resolution, their coordinate system etc.



The literature...

Tire deflection isn't ignored in his model. Shouldn't be in any proper dynamics model as you surely know.
This is off topic to an already off-topic discussion...

~~~

Running sims at 5 times...

You only need CoG height, wheelbase, and longitudinal acceleration to get your weight transfer - the weight transfer will nearly match your ideal braking Force distribution
(not quite because of...

Maybe you could look at these:
http://www.skf.com/group/products/bearings-units-housings/engineered-products/sensor-bearing-units/motor-encoder-units/index.html

probably pricey, but would package...