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Old 12th Aug 2011, 17:25
  #1952 (permalink)  
syseng68k
 
Join Date: Jun 2009
Location: Oxford, England
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A33Zab, #1939

Which F/B signal should be applied, A/C RESPONSE or surface deflection signal. (FEEDBACK SIGNALS)?
Ok, i'll bite: Let's analyse what you have drawn:

Is it a loaded question ?. We have two functional units: The execution
end looks like a standalone feedback servo. Linear demand input
translates to linear control surface deflection, though there are other
considerations, such as rate and travel limits and there may be
non-linear laws involved in the translation. From the way that the loops
are drawn, the execution end just follows demand from the compute end..

The compute end is the clever bit. This translates stick input to an
output, but has the current 3d state of the a/c, other inputs such as ir, baro
and control laws taken into consideration to decide just how much ss
is appropriate. The compute end is only a little box, but it's where
all the complexity lies

Perhaps revise the question to: a/c response, or control surface loading ?..

Hack the above to bits if you like.

Have noticed from your posts that you do seem to have rather eclectic
information sources. For example, the logic diagram in thread #5, Post
#620, with "mod 1139 11/08/06" in the top right corner. Nuff said I guess :-)...

Last edited by syseng68k; 12th Aug 2011 at 17:50.
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