Sökning: id:"swepub:oai:research.chalmers.se:5deb1c2d-ffda-46df-943e-e2f8c6e4ac40" >
Modal Reduction Bas...
Modal Reduction Based on Accurate Input-Output Relation Preservation
-
- Khorsand Vakilzadeh, Majid, 1984 (författare)
- Chalmers tekniska högskola,Chalmers University of Technology
-
- Rahrovani, Sadegh, 1981 (författare)
- Chalmers tekniska högskola,Chalmers University of Technology
-
- Abrahamsson, Thomas, 1956 (författare)
- Chalmers tekniska högskola,Chalmers University of Technology
-
(creator_code:org_t)
- ISBN 9781461465843
- 2013-06-06
- 2014
- Engelska.
-
Ingår i: Conference Proceedings of the Society for Experimental Mechanics Series. - New York, NY : Springer New York. - 2191-5644 .- 2191-5652. - 9781461465843 ; 45:7, s. 333-342
- Relaterad länk:
-
http://dx.doi.org/10...
-
visa fler...
-
https://doi.org/10.1...
-
https://research.cha...
-
visa färre...
Innehållsförteckning
Abstract
Ämnesord
Stäng
No table of content available
- An eigenmode based model reduction technique is proposed to obtain low-order models which contain the dominanteigenvalue subspace of the full system. A frequency-limited interval dominancy is introduced to this technique to measure the output deviation caused by deflation of eigenvalues from the original system in the frequency range of interest. Thus, the dominant eigensolutions with effective contribution can be identified and retained in the reduced-order model. This metric is an explicit formula in terms of the corresponding eigensolution. Hence, the reduction can be made at a low computational cost. In addition, the retained low-order model does not contain any uncontrollable and unobservable eigensolutions. The performance of the created reduced-order models, in regard to the approximation error, is examined by applying three different input signals; unit-impulse, unit-step and linear chirp.
Ämnesord
- TEKNIK OCH TEKNOLOGIER -- Maskinteknik -- Teknisk mekanik (hsv//swe)
- ENGINEERING AND TECHNOLOGY -- Mechanical Engineering -- Applied Mechanics (hsv//eng)
Nyckelord
- Modal analysis
- Unit-impulse response
- Linear system dynamics
- Model reduction
- Frequency-limited dominancy metric
- SWPTC
Publikations- och innehållstyp
- kon (ämneskategori)
- ref (ämneskategori)
Hitta via bibliotek
Till lärosätets databas