482
edits
JSBSim GroundReactions: Difference between revisions
Jump to navigation
Jump to search
Added info about Relaxation Velocity.
(Added info about Relaxation Velocity.) |
|||
| Line 69: | Line 69: | ||
*Contacts of type BOGEY get out of control if they intersect the ground at a steep angles. Use STRUCTURE contacts around the BOGEY to limit the ground contact angle. | *Contacts of type BOGEY get out of control if they intersect the ground at a steep angles. Use STRUCTURE contacts around the BOGEY to limit the ground contact angle. | ||
*Aeromatic uses 20% of the spring rate for a damping rate on the main gear and tail gear and 30% of the nose spring rate. | *Aeromatic uses 20% of the spring rate for a damping rate on the main gear and tail gear and 30% of the nose spring rate. | ||
===Additional Parameter: Relaxation Velocity=== | |||
Any contact point can have a relaxation_velocity element. Example of the [http://en.wikipedia.org/wiki/Relaxation_(physics) relaxation velocity] parameter input: | |||
<syntaxhighlight> | |||
<relaxation_velocity> | |||
<rolling unit="FT/SEC"> 0 </rolling> | |||
<side unit="FT/SEC"> 0 </side> | |||
</relaxation_velocity> | |||
</syntaxhighlight> | |||
According to Jon Berndt ([http://permalink.gmane.org/gmane.games.flightgear.devel/41836 here]), "This turns off the fade-in/out for forces at near-zero or zero velocity." Normally this would not be set to 0, as in this example | |||
{{JSBSim}} | {{JSBSim}} | ||