Quote:
Originally Posted by ZDan
I could be wrong, but here is my impression:
I don't think that a *virtual* point "shooting off to infinity" necessarily means bad things happen in the real world. It's just that the mathematical model is running into a discontinuity, probably due to a divisor getting close to zero somewhere.
Looking at the plots where everything goes to hell at -1 ride height, that might be a mathematical artifact and not representative of physical reality. The *actual* roll center height doesn't go from -5ish to +5ish by going to +infinity and flopping to -infinity first.
It's just a limitation of the mathematical model.
I *think*!
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Part of the problem it represents is that your jacking forces will switch from positive to negative (anti-jacking) mid-corner. No one ever wants to design that in on purpose. You either maintain a RC above ground or below and keep it there. The other issue is the wild swing in the moment arm length.