Erik Hofman writes: > So now you've got: > > 1. friction calculate every wheel separately. > 2. add all frictions for the landing gear. > 3. make the friction for every wheel dependent to wheel spin and use the > result for moments and force calculations. > 4. calculate the moments and forces for the complete landing gear. > > 5. calculate the result by averaging(?) the results for the complete > gear (add this for all wheels) and every separate wheel. > > Does this make sense?
When standing still, you then have to clamp the forces and moments somehow so that they don't cause any previous force or moment to change sign: i.e. the ground reactions can reduce any previously-cumulated force or moment to zero, but they must not be allowed to make a positive force or moment negative or vice versa. When moving, of course, the situation is different, especially in the z-direction (they call student circuits "bounce-and-go's" for a reason). All the best, David _______________________________________________ Flightgear-devel mailing list [EMAIL PROTECTED] http://mail.flightgear.org/mailman/listinfo/flightgear-devel
