
226 Friction-Induced Vibration and Self-Organization
CBAC
/
de
dh
µ= +
(8.39)
Note that the minimum friction corresponds to
SCC/
ad
ef
=
. The sta-
tionary point of Equation (8.37) corresponds to the minimum friction if B/A
= C
adh
/C
def
. The assumption can be justied if the coefcients A and B are
proportional to wear rates due to deformation and adhesion, which in turn
are proportional to friction components due to deformation and adhesion as
designated by C
def
and C
adh
.
A control model, using the concept specied previously, was developed
with Matlab/Simulink software (Figure8.10). The model shows two feed-
back loops due to the deformation and ...