TY  - JOUR
A1  - Zabel, Volkmar
A1  - Brehm, Maik
T1  - Das dynamische Verhalten von Eisenbahnbrücken mit kurzer Spannweite - numerische und experimentelle Untersuchungen
JF  - Bauingenieur, D-A-CH-Mitteilungsblatt
N2  - Das dynamische Verhalten von Eisenbahnbrücken mit kurzer Spannweite - numerische und experimentelle Untersuchungen
KW  - Angewandte Mathematik
KW  - Strukturmechanik
Y1  - 2008
ER  - 
TY  - JOUR
A1  - Brehm, Maik
A1  - Zabel, Volkmar
A1  - Bucher, Christian
T1  - An automatic mode pairing strategy using an enhanced modal assurance citerion based on modal strain energies
JF  - Journal of Sound and Vibration
N2  - In the context of finite element model updating using output-only vibration test data, natural frequencies and mode shapes are used as validation criteria. Consequently, the correct pairing of experimentally obtained and numerically derived natural frequencies and mode shapes is important. In many cases, only limited spatial information is available and noise is present in the measurements. Therefore, the automatic selection of the most likely numerical mode shape corresponding to a particular experimentally identified mode shape can be a difficult task. The most common criterion for indicating corresponding mode shapes is the modal assurance criterion. Unfortunately, this criterion fails in certain cases and is not reliable for automatic approaches. In this paper, the purely mathematical modal assurance criterion will be enhanced by additional physical information from the numerical model in terms of modal strain energies. A numerical example and a benchmark study with experimental data are presented to show the advantages of the proposed energy-based criterion in comparison to the traditional modal assurance criterion.
KW  - Angewandte Mathematik
KW  - Strukturmechanik
Y1  - 2010
U6  - http://dx.doi.org/10.1016/j.jsv.2010.07.006
SP  - 5375
EP  - 5392
ER  - 
TY  - JOUR
A1  - Brehm, Maik
A1  - Zabel, Volkmar
A1  - Bucher, Christian
T1  - Optimal reference sensor positions for applications in model updating using output-only vibration test data based on random excitation: Part 2 - improved search strategy and experimental case study
JF  - Mechanical Systems and Signal Processing
N2  - Optimal reference sensor positions for applications in model updating using output-only vibration test data based on random excitation: Part 2 - improved search strategy and experimental case study
KW  - Angewandte Mathematik
KW  - Strukturmechanik
Y1  - 2011
ER  -