Différences
Ci-dessous, les différences entre deux révisions de la page.
Les deux révisions précédentes Révision précédente Prochaine révision | Révision précédente | ||
public:modeles:rotor_15:accueil [2024/07/26 10:30] – [Fréquences propres] rafaelbarraud | public:modeles:rotor_15:accueil [2024/08/06 16:52] (Version actuelle) – [Natural frequencies] rafaelbarraud | ||
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Ligne 58: | Ligne 58: | ||
^ aspect ratio | [-] | 3 | | ^ aspect ratio | [-] | 3 | | ||
^ number of blades | ^ number of blades | ||
- | ^ rotative | + | ^ nominal rotation |
==== Material properties | ==== Material properties | ||
Ligne 100: | Ligne 100: | ||
^ Mode ^ Type ^ Natural angular frequency (rad/ | ^ Mode ^ Type ^ Natural angular frequency (rad/ | ||
- | | 1 | 1B | 1547.59 | + | | 1 | 1B | 1547.59 |
- | | 2 | 2B | 4839.27 | + | | 2 | 2B | 4839.27 |
| 3 | 1T | 9194.69 | | 3 | 1T | 9194.69 | ||
+ | ====Campbell diagram==== | ||
+ | Evolution of the natural frequencies of the first 3 vibration modes, as a function of rotation speed, for the mesh computed with OpenMCAD[(cite: | ||
+ | |||
+ | {{ : | ||
+ | < | ||
+ | |||
+ | * {{ : | ||
+ | * {{ : | ||
===== Initial blade ===== | ===== Initial blade ===== | ||
Ligne 121: | Ligne 129: | ||
^ Mode ^ Type ^ Natural angular frequency (rad/ | ^ Mode ^ Type ^ Natural angular frequency (rad/ | ||
- | | 1 | 1B | 1527.69 | + | | 1 | 1B | 1527.69 |
- | | 2 | 2B | 4863.1 | 773.986 | | + | | 2 | 2B | 4863.10 | 773.99 | |
| 3 | 1T | 9105.65 | | 3 | 1T | 9105.65 | ||
Ligne 130: | Ligne 138: | ||
^ Mode ^ Type ^ Natural angular frequency (rad/ | ^ Mode ^ Type ^ Natural angular frequency (rad/ | ||
- | | 1 | 1B | 1527.74 | + | | 1 | 1B | 1527.74 |
- | | 2 | 2B | 4863.79 | + | | 2 | 2B | 4863.79 |
| 3 | 1T | 9109.93 | | 3 | 1T | 9109.93 | ||
+ | ====Campbell diagram==== | ||
+ | Comparison of the evolution of the natural frequencies of the first 3 vibration modes, as a function of rotation speed for the initial and the reference blade: | ||
+ | {{ : | ||
+ | |||
+ | |||
+ | < | ||
+ | |||
+ | initial blade (orange), reference blade (gray) </ | ||
+ | |||
+ | * {{ : | ||
+ | * {{ : | ||
</ | </ | ||
Ligne 232: | Ligne 251: | ||
^ Mode ^ Type ^ Pulsation propre (rad/ | ^ Mode ^ Type ^ Pulsation propre (rad/ | ||
- | | 1 | 1F | 1547, | + | | 1 | 1F | 1547, |
- | | 2 | 2F | 4839, | + | | 2 | 2F | 4839, |
| 3 | 1T | 9194, | | 3 | 1T | 9194, | ||
Ligne 256: | Ligne 275: | ||
^ Mode ^ Type ^ Pulsation propre (rad/ | ^ Mode ^ Type ^ Pulsation propre (rad/ | ||
- | | 1 | 1F | 1527, | + | | 1 | 1F | 1527, |
- | | 2 | 2F | 4863,1 | 773,986 | | + | | 2 | 2F | 4863,10 | 773,99 | |
| 3 | 1T | 9105, | | 3 | 1T | 9105, | ||
Ligne 264: | Ligne 283: | ||
^ Mode ^ Type ^ Pulsation propre (rad/ | ^ Mode ^ Type ^ Pulsation propre (rad/ | ||
- | | 1 | 1F | 1527, | + | | 1 | 1F | 1527, |
- | | 2 | 2F | 4863, | + | | 2 | 2F | 4863, |
| 3 | 1T | 9109, | | 3 | 1T | 9109, | ||
+ | ====Diagramme de Campbell==== | ||
+ | Comparaison de l' | ||
+ | |||
+ | {{ : | ||
+ | < | ||
+ | |||
+ | aube initiale (orange), aube de référence (grise)</ | ||
+ | * {{ : | ||
+ | * {{ : | ||
</ | </ | ||
</ | </ |
- public/modeles/rotor_15/accueil.1722004228.txt.gz
- Dernière modification : 2024/07/26 10:30
- de rafaelbarraud