🚀 go-pugleaf

Not being a physicist or mechanical engineer, but an electrical engineer I
have had trouble with a simple problem . . . maybe.  I have asked a few
graduate students in physics, but no luck . . . I guess they weren't sure.

Anyway, the problem. I would like to model a wheel on a suspension for some
control work.  I need to include the effect for a downward force such as
a car frame pressing down, the friction of the ground, rolling resistance
(from compression of pneumatic tire, damping and spring, air resistance, and
anything else which could come of mind.  Assume all information for wheel
is given such as coeff of friction, mass, radius, momemnt of inertia.  I
would like to model this just rolling down a hill with random bumps. This
needs to account for possibility of terminal velocity and such. I have
worked on this for a long time and have no easy solution, as this is not
my field.  If someone could either e-mail me a model and a rough guess on
how to solve or direct me to some other reference which I have not found
which will discuss all of these possibilties, I would appreciate it.

Thanks in advance, Brian

Brian Zimmerman
brian@lexus.ece.cmu.edu
bz08@andrew.cmu.edu
Carnegie-Mellon University
Department of Electrical and Computer Engineering
Circuit Simulation Group