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- Magnevall, MartinBlekinge Tekniska Högskola,Avdelningen för matematik och naturvetenskap (author)
Nonlinear structural identification by the "Reverse Path" spectral method
- Article/chapterEnglish2012
Publisher, publication year, extent ...
- Elsevier BV,2012
- printrdacarrier
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- LIBRIS-ID:oai:DiVA.org:ltu-6516
- https://urn.kb.se/resolve?urn=urn:nbn:se:ltu:diva-6516URI
- https://doi.org/10.1016/j.jsv.2011.10.029DOI
- https://urn.kb.se/resolve?urn=urn:nbn:se:bth-7187URI
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- Language:English
- Summary in:English
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- SwePubSwePub
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- Validerad; 2012; 20111114 (andbra)
- When dealing with nonlinear dynamical systems, it is important to have efficient, accurate and reliable tools for estimating both the linear and nonlinear system parameters from measured data. An approach for nonlinear system identification widely studied in recent years is "Reverse Path". This method is based on broad-band excitation and treats the nonlinear terms as feedback forces acting on an underlying linear system. Parameter estimation is performed in the frequency domain using conventional multiple-input-multiple-output or multiple-input-single-output techniques. This paper presents a generalized approach to apply the method of "Reverse Path" on continuous mechanical systems with multiple nonlinearities. The method requires few spectral calculations and is therefore suitable for use in iterative processes to locate and estimate structural nonlinearities. The proposed method is demonstrated in both simulations and experiments on continuous nonlinear mechanical structures. The results show that the method is effective on both simulated as well as experimental data.
Subject headings and genre
- TEKNIK OCH TEKNOLOGIER Annan teknik Övrig annan teknik hsv//swe
- ENGINEERING AND TECHNOLOGY Other Engineering and Technologies Other Engineering and Technologies not elsewhere specified hsv//eng
- TEKNIK OCH TEKNOLOGIER Maskinteknik Teknisk mekanik hsv//swe
- ENGINEERING AND TECHNOLOGY Mechanical Engineering Applied Mechanics hsv//eng
- Produktinnovation
- Product Innovation
- Dynamical systems Estimation
Added entries (persons, corporate bodies, meetings, titles ...)
- Josefsson, AndreasBlekinge Tekniska Högskola,Avdelningen för maskinteknik(Swepub:bth)ajs (author)
- Ahlin, KjellBlekinge Tekniska Högskola,Avdelningen för maskinteknik(Swepub:bth)kah (author)
- Broman, GöranBlekinge Tekniska Högskola,Luleå tekniska universitet,Innovation och Design,Avdelningen för maskinteknik(Swepub:bth)gbr (author)
- Blekinge Tekniska HögskolaAvdelningen för matematik och naturvetenskap (creator_code:org_t)
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- In:Journal of Sound and Vibration: Elsevier BV131:4, s. 938-9460022-460X1095-8568
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