Nonlinear output frequency response functions of MDOF systems with multiple nonlinear components
Peng, Z.K., Lang, Z.Q. and Billings, S.A.
(2006)
Nonlinear output frequency response functions of MDOF systems with multiple nonlinear components.
Research Report.
ACSE Research Report no. 930
.
Automatic Control and Systems Engineering, University of Sheffield
Abstract
In engineering practice, most mechanical and structural systems are modeled as Multi-Degree-of-Freedom (MDOF) systems. When some components within the systems have nonlinear characteristics, the whole system will behave nonlinearly. The concept of Nonlinear Output Frequency Response Functions (NOFRFs) was proposed by the authors recently and provides a simple way to investigate nonlinear systems in the frequency domain. The present study is concerned with investigating the inherent relationships between the NOFRFs for any two masses of nonlinear MDOF systems with multiple nonlinear components. The results reveal very important properties of the nonlinear systems. One significant application of the results is to detect and locate faults in engineering structures which make the structures behave nonlinearly.
Metadata
Item Type:
Monograph
Authors/Creators:
Peng, Z.K.
Lang, Z.Q.
Billings, S.A.
Copyright, Publisher and Additional Information:
The Department of Automatic Control and Systems Engineering research reports offer a forum for the research output of the academic staff and research students of the Department at the University of Sheffield. Papers are reviewed for quality and presentation by a departmental editor. However, the contents and opinions expressed remain the responsibility of the authors. Some papers in the series may have been subsequently published elsewhere and you are advised to cite the later published version in these instances.
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