Non Linear Dead Band, second order system
Deadband can occur in positional systems with friction.
The applet below show the effect of deadband on the response of a
second order system. Deadband is a band of displacements about
the desired set point where the restoring force is zero. In this
applet, the band is set by Ul and Ll.
The eg parameters (K, 1.0, 0.2, -0.2, 1.0, 1.0) show that as
K is varied from 2 to 30 the system can settle to a final
value which is ~ ±0.2 of the desired settling point.
Gif image below shows how applet should appear.
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COPYRIGHT © 2006 Cuthbert Nyack.