Différences
Ci-dessous, les différences entre deux révisions de la page.
Les deux révisions précédentes Révision précédente Prochaine révision | Révision précédente | ||
public:modeles:rotor_14:accueil [2024/07/25 13:25] – [Fréquences propres] rafaelbarraud | public:modeles:rotor_14:accueil [2024/08/05 15:55] (Version actuelle) – [Natural frequencies] rafaelbarraud | ||
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Ligne 55: | Ligne 55: | ||
^ aspect ratio | [-] | 2.4 | | ^ aspect ratio | [-] | 2.4 | | ||
^ number of blades | ^ number of blades | ||
- | ^ rotative | + | ^ nominal rotation |
==== Material properties | ==== Material properties | ||
Ligne 96: | Ligne 96: | ||
^ Mode ^ Type ^ Natural angular frequency (rad/ | ^ Mode ^ Type ^ Natural angular frequency (rad/ | ||
- | | 1 | 1B | 1739.36 | + | | 1 | 1B | 1739.36 |
- | | 2 | 2B | 6240.69 | + | | 2 | 2B | 6240.69 |
| 3 | 1T | 8434.99 | | 3 | 1T | 8434.99 | ||
+ | ====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 116: | Ligne 128: | ||
^ Mode ^ Type ^ Natural angular frequency (rad/ | ^ Mode ^ Type ^ Natural angular frequency (rad/ | ||
- | | 1 | 1B | 1739.44 | + | | 1 | 1B | 1739.44 |
| 2 | 2B | 6259.56 | | 2 | 2B | 6259.56 | ||
| 3 | 1T | 8425.56 | | 3 | 1T | 8425.56 | ||
Ligne 124: | Ligne 136: | ||
^ Mode ^ Type ^ Natural angular frequency (rad/ | ^ Mode ^ Type ^ Natural angular frequency (rad/ | ||
- | | 1 | 1B | 1739.51 | + | | 1 | 1B | 1739.51 |
- | | 2 | 2B | 6261.91 | + | | 2 | 2B | 6261.91 |
| 3 | 1T | 8428.64 | | 3 | 1T | 8428.64 | ||
+ | ====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 223: | Ligne 246: | ||
^ Mode ^ Type ^ Pulsation propre (rad/ | ^ Mode ^ Type ^ Pulsation propre (rad/ | ||
- | | 1 | 1F | 1739, | + | | 1 | 1F | 1739, |
- | | 2 | 2F | 6240, | + | | 2 | 2F | 6240, |
| 3 | 1T | 8434, | | 3 | 1T | 8434, | ||
Ligne 249: | Ligne 272: | ||
^ Mode ^ Type ^ Pulsation propre (rad/ | ^ Mode ^ Type ^ Pulsation propre (rad/ | ||
- | | 1 | 1F | 1739, | + | | 1 | 1F | 1739, |
| 2 | 2F | 6259, | | 2 | 2F | 6259, | ||
| 3 | 1T | 8425, | | 3 | 1T | 8425, | ||
Ligne 257: | Ligne 280: | ||
^ Mode ^ Type ^ Pulsation propre (rad/ | ^ Mode ^ Type ^ Pulsation propre (rad/ | ||
- | | 1 | 1F | 1739, | + | | 1 | 1F | 1739, |
- | | 2 | 2F | 6261, | + | | 2 | 2F | 6261, |
| 3 | 1T | 8428, | | 3 | 1T | 8428, | ||
- public/modeles/rotor_14/accueil.1721928304.txt.gz
- Dernière modification : 2024/07/25 13:25
- de rafaelbarraud