To quote my namesake: Woohoo!
The Beta value simply needed a second term to account for speed. The values now correlate quite well with Cibachrome's, and the tyre forces are now the same magnitude as the applied lateral force.
That's a good start. Going forwards, I'll need to consider load...
I've been doing some more reading, and I believe the source of the error is that the side-slip angle calculation should have an additional term to account for speed. The side slip angle (beta) in my original calculation is only true for low speeds. I think I understand Cibachrome's second post...
Pat, I'd started to wonder if my initial post could be misinterpreted on some fronts, and it seems that was the case - sorry. I'll try to be be more careful in the future.
Greg, I genuinely wasn't expecting someone to go through it personally, but I'm not silly enough to turn down your offer...
Cibachrome,
I hadn't seen your post when I replied to Greg earlier. Thanks for the response - that's the kind of reply I was hoping for. I'll have to do some more reading on Beta and the understeer gradient.
Thank you!
Greg,
I'm not intending for anyone to replicate my work. Let me put it this way:
* I haven't been formally taught vehicle dynamics.
* I've read four textbooks on this, and they seem to contradict each other at points, which is a touch confusing.
* I haven't got anyone to ask personally, plus...
Hi Greg,
Thanks for the reply. At the risk of sounding like an idiot; I don't think I do?
I understand that I have quoted some values in radians and others in degrees, which can be a little confusing. Also, the stated equations don't have unit conversions stated within them, although the...
Hi,
I'm trying to calculate slip angles for a vehicle simulation I'm creating, and I'm not confident of my results (this is not my field of expertise, but I'm trying). My understanding is that the sign of the front & rear slip angles should be negative for a RH turn, yet my rear slip angles are...
