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Validation of a mod...
Validation of a model calibration method through vibrational testing of a mechanical system with local clearance
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- Chen, Yousheng (author)
- Linnéuniversitetet,Institutionen för maskinteknik (MT)
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- Linderholt, Andreas, 1968- (author)
- Linnéuniversitetet,Institutionen för maskinteknik (MT),Maskinteknik
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- Abrahamsson, Thomas, 1956 (author)
- Chalmers University of Technology,Chalmers tekniska högskola
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- Xia, Yuying (author)
- University of the West of England, UK
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- Friswell, Michael I (author)
- Swansea University, UK
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(creator_code:org_t)
- ISBN 9789073802940
- Leuven, Belgium : Katholieke University Leuven, 2016
- 2016
- English.
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In: Proceedings of ISMA2016 International conference on noise and vibration engineering and USD2016 International conference on uncertainty in structural dynamics. - Leuven, Belgium : Katholieke University Leuven. - 9789073802940 ; , s. 2581-2595
- Related links:
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Abstract
Subject headings
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- Nonlinear finite element models are often validated using experimental data. A previously proposed calibration method, which concerns pre-test planning, multi-sinusoidal excitation and an effective optimization routine, is improved with an extended version of the pre-test planning. The improved method is validated using a test structure with a clearance type nonlinearity. From the pretest planning, an optimal configuration for the data acquisition is determined. The multi-harmonic nonlinear frequency response functions (FRFs) of the structure under test are then generated by a multi-sinusoidal excitation. Model calibration is conducted by minimizing the difference between the experimental multi-harmonic nonlinear FRFs and their analytical counterparts. The uncertainties of the estimated parameters are assessed by a k-fold cross validation, which confirm that the uncertainties of the estimated parameters are small when the optimal configuration is applied.
Subject headings
- TEKNIK OCH TEKNOLOGIER -- Maskinteknik -- Annan maskinteknik (hsv//swe)
- ENGINEERING AND TECHNOLOGY -- Mechanical Engineering -- Other Mechanical Engineering (hsv//eng)
- TEKNIK OCH TEKNOLOGIER -- Maskinteknik (hsv//swe)
- ENGINEERING AND TECHNOLOGY -- Mechanical Engineering (hsv//eng)
Keyword
- Maskinteknik
- Mechanical Engineering
- NONLINEAR-SYSTEMS
Publication and Content Type
- ref (subject category)
- kon (subject category)
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