Verbetering van numeriese modelle met behulp van eksperimentele data
Suid-Afrikaanse Tydskrif vir Natuurwetenskap en Tegnologie/South African Journal of Science and Technology
| Field | Value | |
| Title | Verbetering van numeriese modelle met behulp van eksperimentele data Improvement of numerical models using experimental data | |
| Creator | Gorbler, D. Z. | |
| Description | Daar is toenemende belangstelling in tegnieke vir die verbetering van numeriese struktuurmodelle met behulp van eksperimentele data. Hierdie werk ondersoek die toepassing van twee fundamenteel verskillende benaderings tot die probleem aan die hand van 'n praktiese toetsgeval. In die een geval word die struktuurmatrikse direk verstel om die eiewaardes en eievektore van die numeriese model in ooreenstemming met gemete waardes te forseer. In die tweede geval word fisiese ontwerpparameters verstel om die ooreenstemming van eiewaardes te verbeter. Alhoewel direkte verstelling van die struktuurmatrikse heelwat eenvoudiger is om te implementeer as verstelling van fisiese ontwerpparameters en ook beter ooreenstemming gee, is die toepassing daarvan beperk as gevolg van die versteuring van die fisiese samehang van die matrikse en daar word aanbeveel dat verdere werk toespits op die verstelling van fisiese parameters. There is a growing interest in techniques for the updating of numerical structural models using experimental data. This work investigates the application of two fundamentally different approaches to the problem through a practical example. In one case the structural matrices are directly adjusted to force the eigenvalues and eigenvectors of the numerical model the same as the measured values. In the second case physical design variables are adjusted to improve the agreement between the eigenvalues. Although the direct adjustment of the structural matrices is much simpler to implement than the adjustment of physical design variables and also leads to better correspondence, the application thereof is restricted because of the changes in the physical structure of the matrices and it is suggested that further research be focused on the adjustment of physical parameters. | |
| Publisher | AOSIS | |
| Date | 1995-07-10 | |
| Identifier | 10.4102/satnt.v14i1.599 | |
| Source | Suid-Afrikaanse Tydskrif vir Natuurwetenskap en Tegnologie; Vol 14, No 1 (1995); 4-11 Suid-Afrikaanse Tydskrif vir Natuurwetenskap en Tegnologie; Vol 14, No 1 (1995); 4-11 2222-4173 0254-3486 | |
| Language | eng | |
| Relation |
The following web links (URLs) may trigger a file download or direct you to an alternative webpage to gain access to a publication file format of the published article:
https://journals.satnt.aosis.co.za/index.php/satnt/article/view/599/1078
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