Title: Design of excitation signals for the restoring force surface method
Authors: Duym, S ×
Schoukens, Joannes #
Issue Date: Mar-1995
Publisher: Academic press (london) ltd
Series Title: Mechanical systems and signal processing vol:9 issue:2 pages:139-158
Abstract: In the classical Restoring Force method the non-linear force, acting on a mechanical system, is fitted to a series of standard functions. In order to guarantee the quality of the fit a sufficiently uniform distribution of the state trajectory sample points over the state plane is needed. In this paper, it is shown that a uniform covering of the state plane can be obtained using a periodic kinematic signal (i.e. displacement, velocity and acceleration) with a user specified amplitude spectrum by making a proper choice for the associated phases. These periodic kinematic signals can be imposed on the mechanical structure by implementing a software feedback which corrects the excitation force spectrum iteratively. In this paper it will be shown how to optimise the phase spectrum so that a uniform coverage is obtained.
ISSN: 0888-3270
Publication status: published
KU Leuven publication type: IT
Appears in Collections:ESAT - STADIUS, Stadius Centre for Dynamical Systems, Signal Processing and Data Analytics
× corresponding author
# (joint) last author

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