Identification of coulomb, viscous and particle damping para meters from the response of SDOF harmonically forced linear oscillator
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Abstract
Theoretical
and Experimental
methods
for identification of
coulomb
,Viscous and Particle
damping parameters from the response of Single degree of freedom harmonically forced linear oscillator
when
system damped with more than one type of damping
,
which parameter is r
esponsible for the control of resonant
response of vibrating systems
,
in experimental method setup have been presented to investigate steady state
response amplitude x
i
f
or
SDOF system for different values of amplitude Y
i
of the base excitation from this
relationship of (X
i ,
Y
i
) the values of
viscous
damping coefficient „c? and
coulomb
friction force F
0
,
also
equivalent viscous damping ratios ,
have been calculated from
frequency response analysis for the systems with
viscous damping ,Viscous and Coulomb friction damping
,
coulomb
friction damping and
particle
damping by
using half power band
-
width method
and in theoretical studies expression for steady state amplitude X
0
obtained is used to study the effect of frequency ratio
and coulomb friction parameters on phase angle and
amplitude ratio
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