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JSBSim GroundReactions: Difference between revisions
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→Configuration File Format:: Explanation of damping_coeff and linear vs square.
(→Configuration File Format:: Explanation of damping_coeff and linear vs square.) |
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damping_coeff and damping_coeff_rebound control the damping coefficient on compression and rebound, respectively. If damping_coeff_rebound is omitted, the rebound coefficient defaults to the same as the damping_coeff. | |||
damping_coeff and damping_coeff_rebound control can be either linear (default) or square. If 'type="SQUARE"' is omitted they default to linear. If linear, units are LBS/FT/SEC or N/M/SEC. If square, units are LBS/FT2/SEC2 | N/M2/SEC2. Using square damping should result in more vigorous damping under extreme forces and accelerations and may help reduce extreme ground reaction forces sometimes experienced under JSBSim. | |||
===Hints=== | ===Hints=== | ||
*FlightGear runs JSBSim at 120 Hertz. That's fine for the overall FDM, but incredibly slow for a high fidelity gear model. The problem is worse for a higher spring rate gear, use the softest spring rate you can live with. | *FlightGear runs JSBSim at 120 Hertz. That's fine for the overall FDM, but incredibly slow for a high fidelity gear model. The problem is worse for a higher spring rate gear, use the softest spring rate you can live with. | ||