problem with system identification

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Ahmed Hamed
Ahmed Hamed 2020-8-1
评论： Ahmed Hamed 2020-8-1
Dear All
i am trying to make system identification for the following system
The problem i can not get good model fit for the system(Note : there is a limit cycle in the system with some input range). what is your suggetions? I appreciate your time and help
Regards
  2 个评论
Nijas palakkal
Nijas palakkal 2020-8-1
please explain what exactly your system is.?
linear ,non-linear ?
Ahmed Hamed
Ahmed Hamed 2020-8-1
Its second order nonlinear system (torsional spring system). The data was obtained from experiment.

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