Différences
Ci-dessous, les différences entre deux révisions de la page.
Les deux révisions précédentes Révision précédente Prochaine révision | Révision précédente | ||
public:modeles:rotor_65:accueil [2023/04/14 15:09] – [Propriétés matériau] solenekojtych | public:modeles:rotor_65:accueil [2024/07/30 13:02] (Version actuelle) – [Campbell diagram] rafaelbarraud | ||
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Ligne 28: | Ligne 28: | ||
* Picture : | * Picture : | ||
{{ : | {{ : | ||
- | < | + | < |
<callout type=" | <callout type=" | ||
Ligne 54: | Ligne 54: | ||
^ tip speed | ^ tip speed | ||
^ aspect ratio | [-] | 1.679 | | ^ aspect ratio | [-] | 1.679 | | ||
- | ^ rotative | + | ^ nominal rotation |
==== Material properties | ==== Material properties | ||
- | The material of the rotor 65 is titanium according to the report, but its characteristics are not provided. A generic titanium Ti-6Al-4V is considered: | + | The material of the rotor 65 is titanium according to the report, but its characteristics are not provided. |
- | + | ||
- | ^ | + | |
- | ^ alloy | [-] | 18-Ni-200-maraging | + | |
- | ^ Young' | + | |
- | ^ density | + | |
- | ^ Poisson' | + | |
- | ^ yield stress | + | |
+ | ^ ^ units ^ values | ||
+ | ^ alloy | [-] | Ti-6Al-4V | ||
+ | ^ Young' | ||
+ | ^ density | ||
+ | ^ Poisson' | ||
+ | ^ yield stress | ||
==== CAD model ==== | ==== CAD model ==== | ||
Ligne 91: | Ligne 90: | ||
First three natural frequencies (with clamped root) for the mesh computed with OpenMCAD[(cite: | First three natural frequencies (with clamped root) for the mesh computed with OpenMCAD[(cite: | ||
- | ^ Mode ^ <fc #ff0000>Type</ | + | ^ Mode ^ Type ^ Natural angular frequency (rad/ |
- | | 1 | + | | 1 |
- | | 2 | + | | 2 |
- | | 3 | + | | 3 |
+ | ====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: | ||
+ | |||
+ | {{ : | ||
+ | < | ||
+ | |||
+ | * {{ : | ||
+ | * {{ : | ||
Ligne 111: | Ligne 118: | ||
* from the whole mesh: | * from the whole mesh: | ||
- | ^ Mode ^ <fc #ff0000>Type</ | + | ^ Mode ^ Type ^ Natural angular frequency (rad/ |
- | | 1 | + | | 1 |
- | | 2 | + | | 2 |
- | | 3 | + | | 3 |
* from the reduced order model: | * from the reduced order model: | ||
- | ^ Mode ^ <fc #ff0000>Type</ | + | ^ Mode ^ Type ^ Natural angular frequency (rad/ |
- | | 1 | + | | 1 |
- | | 2 | + | | 2 |
- | | 3 | + | | 3 |
+ | |||
+ | ====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 155: | Ligne 176: | ||
* Photographie : | * Photographie : | ||
{{ : | {{ : | ||
- | < | + | < |
<callout type=" | <callout type=" | ||
Ligne 182: | Ligne 203: | ||
^ vitesse en tête | [m/s] | 419.1 | | ^ vitesse en tête | [m/s] | 419.1 | | ||
^ allongement | ^ allongement | ||
- | ^ vitesse de rotation | + | ^ vitesse de rotation |
Ligne 222: | Ligne 243: | ||
^ Mode ^ Type ^ Pulsation propre (rad/ | ^ Mode ^ Type ^ Pulsation propre (rad/ | ||
- | | 1 | + | | 1 |
- | | 2 | + | | 2 |
- | | 3 | + | | 3 |
+ | ====Diagramme de Campbell==== | ||
+ | Évolution des fréquences propres des 3 premiers modes, en fonction de la vitesse de rotation, pour le maillage obtenu avec OpenMCAD[(cite: | ||
+ | {{ : | ||
+ | < | ||
+ | |||
+ | * {{ : | ||
+ | * {{ : | ||
+ | |||
+ | |||
+ | |||
===== Aube initiale ===== | ===== Aube initiale ===== | ||
Ligne 238: | Ligne 269: | ||
^ Mode ^ Type ^ Pulsation propre (rad/ | ^ Mode ^ Type ^ Pulsation propre (rad/ | ||
- | | 1 | + | | 1 |
- | | 2 | + | | 2 |
- | | 3 | + | | 3 |
Ligne 247: | Ligne 278: | ||
^ Mode ^ Type ^ Pulsation propre (rad/ | ^ Mode ^ Type ^ Pulsation propre (rad/ | ||
- | | 1 | + | | 1 |
- | | 2 | + | | 2 |
- | | 3 | + | | 3 |
+ | |||
+ | |||
+ | ====Diagramme de Campbell==== | ||
+ | Comparaison de l' | ||
+ | |||
+ | {{ : | ||
+ | < | ||
+ | aube initiale (orange), aube de référence (grise)</ | ||
+ | * {{ : | ||
+ | * {{ : | ||
</ | </ | ||
</ | </ | ||
- public/modeles/rotor_65/accueil.1681499379.txt.gz
- Dernière modification : 2023/04/14 15:09
- de solenekojtych