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Identification of the Best Modal Parameters and Strategies for FE Model Updating
Technical Paper
2001-01-1439
ISSN: 0148-7191, e-ISSN: 2688-3627
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English
Abstract
The use of numerical models as basis to assemble or modify all kind of new structures is increasing over the last years. This has as benefit that it reduces the number of expensive, physical prototypes. These numerical models however must be verified and validated against measured data. Updating is generally needed to guarantee accurate correspondence with reality.
This paper focuses on an exhaust. It describes the different steps of the complete process from the acquisition till the updating. On the measurement side, some typical acquisition measures and an efficient approach to handle (slightly) inconsistent data sets is explained. On the numerical side, it is investigated how to achieve the final updated exhaust with physical relevant characteristics.
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Authors
Topic
Citation
Deweer, J., Van Langenhove, T., and Grinker, S., "Identification of the Best Modal Parameters and Strategies for FE Model Updating," SAE Technical Paper 2001-01-1439, 2001, https://doi.org/10.4271/2001-01-1439.Also In
SAE 2001 Transactions Journal of Passenger Cars - Mechanical Systems
Number: V110-6; Published: 2002-09-15
Number: V110-6; Published: 2002-09-15
References
- Van Langenhove T. Brughmans M. “Using LMS/Pretest and MSC/NASTRAN to find an optimal sensor placement for modal identification and correlation of aerospace structures” MSC World Aerospace Conference 7-9 June 2000
- Heylen W. Lammens S. Sas P. Modal Analysis Theory and Testing B.2.6 B.2.7
- Van der Auweraer H. Leurs W. Mas P. Hermans L. Modal Parameter Estimation from Inconsistent Data Sets IMAC Feb. 2000
- LMS CADA-X Modal Analysis manual
- LMS CADA-X Modal Design manual
- Brughmans M. Leuridan J. Van Langenhove T. Turgay F. Validation of automotive component FE models by means of test-analysis correlation and updating SAE 1999
- Cavalo C. Giovanni I. FE model validation and mode behaviour prediction tuning through an optimized experimental modal analysis procedure: a typical truck component application European Automotive Conference (EAC) Barcelona July 1999