Monday, April 6, 2009

If one is good, are two better?


The poor performance of elevator control led me to try some other schemes. Leaving out the ones that did not work, the above graph compares the response of a flap only control scheme to a scheme that moves the elevator in the same direction as the flap, but at half the gain.


It is not clear that this is a better scheme but it does get all the control forces acting in the direction that the boat wants to move when the wand senses the trough.


The trough is an isolated half-sine of depth 3 ft and width 30 ft (1 m by 10 m).

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