Difference between revisions of "Errata: In Example 11.12, transfer functions for inner loop and outer loop dynamics are incorrect"

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{{errata page
 
{{errata page
| chapter =  
+
| chapter = Frequency Domain Design
| page =  
+
| page = 341
| line =  
+
| line = -6 and 342, line -16
| contributor = R. M. Murray
+
| contributor = J. How
| date =  
+
| date = 24 Nov 2013
| rev = 2.10e
+
| rev = 2.11b
 
| version = Third printing
 
| version = Third printing
 
| text =  
 
| text =  
 +
In the description of the inner and outer loop dynamics for the vectored thrust aircraft, the equations for the inner and outer loop transfer functions are incorrect.  The correct dynamics for the inner loop are
 +
<center><amsmath>
 +
  P_i = H_{\theta u_1} = \frac{r}{J s^2}.
 +
</amsmath></center>
 +
and the dynamics for the outer loop should be
 +
<center><amsmath>
 +
  P(s) = H_i(0) P_o(s) = \frac{H_i(0)}{m s^2 {\color{blue} + c s}},
 +
</amsmath></center>
 +
The MATLAB code and plots use the correct expressions.
 
}}
 
}}

Revision as of 02:10, 25 November 2013

Return to Errata page

Location: page 341, line -6 and 342, line -16

In the description of the inner and outer loop dynamics for the vectored thrust aircraft, the equations for the inner and outer loop transfer functions are incorrect. The correct dynamics for the inner loop are

math

and the dynamics for the outer loop should be

math

The MATLAB code and plots use the correct expressions.

(Contributed by J. How, 24 Nov 2013)