| Title: | The influence of the notches on the natural frequencies |
| Authors: | Dekýš, Vladimír Kopas, Peter Mazúr, Ján Malcho, Milan |
| Citation: | Applied and Computational Mechanics. 2007, vol. 1, no. 1, p. 21-28. |
| Issue Date: | 2007 |
| Publisher: | University of West Bohemia |
| Document type: | článek article |
| URI: | http://www.kme.zcu.cz/acm/old_acm/full_papers/acm_vol1no1_p003.pdf http://hdl.handle.net/11025/1829 |
| ISSN: | 1802-680X (Print) 2336-1182 (Online) |
| Keywords: | přirozená frekvence;metoda konečných prvků;funkce frekvenční odezvy |
| Keywords in different language: | natural frequency;finite element method;frequency response function |
| Abstract: | The simplification of the FEM model (the missing of a notch or a crack) generally means the modification of the natural frequencies. An analysis of these changes is matter of this paper. The direct and semicircle notches were made on the testing specimens (by cut depth in the specimens) and the naturals frequencies were measured and computed. The results are compared. In the paper is discussed the choice of the FEM element for FEM model and the comparison with experiment is made too. The influence of the crack on the natural frequencies is discussed in the case of specimen for high cycle fatigue test. The changes of the first three frequencies are compared for specimens with and without crack. |
| Rights: | © 2007 University of West Bohemia. All rights reserved. |
| Appears in Collections: | Volume 1, number 1 (2007) Volume 1, number 1 (2007) |
Files in This Item:
| File | Description | Size | Format | |
|---|---|---|---|---|
| acm_vol1no1_p003.pdf | 5,36 MB | Adobe PDF | View/Open |
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