Pauvres_honteux wrote: ↑
Wed Apr 11, 2018 5:32 am
Hi guys, anything in this topic you can utilize?
Acceleration or forces vs Bezier curves
Interesting. I've never really thought about roller coaster designs. With respect to roadway curvatures, whether highways or railroads, most of that is dictated by established policies. The point about centrifugal force (or is it centripetal? I never know...) is a significant one and it reminds me we need to explore that, too.
Specifically, in highways / railroads, we use the concept of superelevation, which is just banked curves like on a race track, but much less extreme. Of course, they're everywhere in a roller coaster.
The rider comfort issue is usually managed using any of three factors: posting a speed limit, lengthening the curve, and/or banking / superelevating it.
Whether or not the spline comb will come in handy, I can't say. It might be useful for edge cases, but I think if we can get the spline to always be mathematically equivalent to a series of simple arcs and line segments, the managing the comb will never be an issue. There are exceptions, though.