I'm not familiar with the suspension geometry of planes, but i *guess* it can be modelled as a series of "bodies", "joints", "springs" and "dampers", together with the tire model.
Planes tires are pretty big, so they're an important part of the suspension process in landings too (and braking.. planes have brakes on their wheels too, not just reversing engines rotation + flaps, right?), not so much in take offs. You simply simulate a couple of bodies linked together through joints, and the springs and dampers must be present too (depends on the physics engine of choice, the spring rates and dampening values are part of the joints properties, or a separate "entity"). As for the tires, that's probably the biggest issue i'll have to deal with in my simulator, but i think a simple approximation will be enough for plane landings. I was hoping fligh gear simulated all those entity types i've mentioned, since that's what i could reuse for the physics of Motorsport. However, if it does not, then both projects are in need of using a third party physics engine that does it, such as ODE, Bullet, Physsim, etc. (unless you want to code it yourself, but i'm not a physicsist nor a mathematician, and i don't have enough spare time to learn enough, so i try to reuse physics code as much as possible. which is one of the reasons i'm looking into using FG). On 12/1/07, Jon S. Berndt <[EMAIL PROTECTED]> wrote: > > Hi all, > > > > I'm the main developer of Motorsport ( www.motorsport-sim.org ), a > > wheeled vehicles simulator (aimed at racing cars, but not necessarily > > exclusively focused on that). I'm rewriting the sim from scratch, and > > while i'm at it, i'm reconsidering my choices of third party libraries > > to use. > > > > I've been told that FlighGear people were interested in including a > > car simulation on it too, so that's why i'm seding this email :-) > > I am particularly interested in how you model suspension/ground reactions. > > Jon > > > Jon S. Berndt > Development Coordinator > JSBSim Project > www.JSBSim.org > > > > ------------------------------------------------------------------------- > SF.Net email is sponsored by: The Future of Linux Business White Paper > from Novell. From the desktop to the data center, Linux is going > mainstream. Let it simplify your IT future. > http://altfarm.mediaplex.com/ad/ck/8857-50307-18918-4 > _______________________________________________ > Flightgear-devel mailing list > Flightgear-devel@lists.sourceforge.net > https://lists.sourceforge.net/lists/listinfo/flightgear-devel > -- Saludos, Bruno González _______________________________________________ Msn/Jabber: stenyak AT gmail.com ICQ: 153709484 http://www.stenyak.com ------------------------------------------------------------------------- SF.Net email is sponsored by: The Future of Linux Business White Paper from Novell. From the desktop to the data center, Linux is going mainstream. Let it simplify your IT future. http://altfarm.mediaplex.com/ad/ck/8857-50307-18918-4 _______________________________________________ Flightgear-devel mailing list Flightgear-devel@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/flightgear-devel
