Change search
ReferencesLink to record
Permanent link

Direct link
On Nonlinear Parameter Estimation with Random Noise Signals
Responsible organisation
2007 (English)Conference paper (Refereed) Published
Abstract [en]

In the field of nonlinear dynamics it is essential to have well tested and reliable tools for estimating the nonlinear parameters from measurement data. This paper presents an identification technique based on using random noise signals, as initially developed by Julius S. Bendat. With this method the nonlinearity is treated as a feedback forcing term acting on an underlying linear system. The parameter estimation is then performed in the frequency domain by using conventional MISO/MIMO techniques. To apply this method successfully it is necessary to have some pre-information about the model structure and thus methods for nonlinear characterization and localization are studied. The paper also demonstrates the various ways the method can be formulated for multiple-degree-of-freedoms. The implementation of the method is illustrated with simulated data as well as a practical application, where the method is used to create a dynamic model of a test-rig with a significant nonlinearity.

Place, publisher, year, edition, pages
Orlando, Florida: Society for Experimental Mechanics , 2007.
Keyword [en]
nonlinear, characterization, localization, parameter estimation, reverse-path, geometric nonlinearity
National Category
Applied Mechanics
URN: urn:nbn:se:bth-9042Local ID: 0-912053-96-8OAI: diva2:836818
Available from: 2012-09-18 Created: 2007-08-13 Last updated: 2015-06-30Bibliographically approved

Open Access in DiVA

fulltext(447 kB)162 downloads
File information
File name FULLTEXT01.pdfFile size 447 kBChecksum SHA-512
Type fulltextMimetype application/pdf

Search in DiVA

By author/editor
Magnevall, Martin
Applied Mechanics

Search outside of DiVA

GoogleGoogle Scholar
Total: 162 downloads
The number of downloads is the sum of all downloads of full texts. It may include eg previous versions that are now no longer available

Total: 64 hits
ReferencesLink to record
Permanent link

Direct link