A Computer Optimization of the Rayleigh-Ritz Method
| Autor: | A. Vander Vorst, R.J.M. Govaerts, Auguste Laloux |
|---|---|
| Rok vydání: | 1969 |
| Předmět: |
Rayleigh–Ritz method
Mathematical optimization Radiation Computation Transmission-line matrix method Condensed Matter Physics Measure (mathematics) Exact solutions in general relativity Convergence (routing) Applied mathematics Computational electromagnetics Electrical and Electronic Engineering Series expansion Mathematics |
| Zdroj: | IEEE Transactions on Microwave Theory and Techniques. 17:454-460 |
| ISSN: | 0018-9480 |
| DOI: | 10.1109/tmtt.1969.1126996 |
| Popis: | A method has been developed to improve the use of the RayIeigh-Ritz procedure. A criterion is established, which is a measure of the cumulative improvement due to the addition of more and more terms in the series expansion. Without calculating the exact roots of determinantal equations, the convergence is accelerated by skipping unnecessary intermediate steps. The computation time is drastically reduced because the final result is obtained after only a few (not more than 5 to 7) values of determinants of increasing order. Inhomogeneneously loaded waveguides are chosen as an application because the exact solution is available to check the validity of the method. The results obtained with the method described in this paper are compared with other approximate procedures. The comparison shows a definite advantage for the suggested technique. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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