Différences

Ci-dessous, les différences entre deux révisions de la page.

--- public:modeles:rotor_55:accueil [2024/07/30 12:14] – [Fréquences propres] rafaelbarraud
+++ public:modeles:rotor_55:accueil [2024/07/30 12:17] (Version actuelle) – [Natural frequencies] rafaelbarraud
@@ Ligne 60: / Ligne 60: @@
 ^ aspect ratio          |  [-]     | 1.43     |
 ^ number of blades       |  [-]     | 15      |
-^ rotative speed  |  [rad/s]  | 839.85 |
+^ nominal rotation speed $\omega_n$   |  [rad/s]  | 839.85 |
 ==== Material properties  ====
@@ Ligne 104: / Ligne 104: @@
 | 3     | 1T    | 10993.56                       | 1749.68                  |
+====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:Kojtych_2022_gene_aubes)]:
+{{ :public:modeles:rotor_55:campbell_eng_55_ref.png?500 }}
+<caption>Campbell diagram computed with a linear centrifugal preload, with clamped root (nominal rotation speed ωₙ = 839.85 rad/s)</caption>
+  * {{ :public:modeles:rotor_55:campbell_eng_55_ref.pdf |graph (.pdf)}}
+  * {{ :public:modeles:rotor_55:campbell_55_ref.csv |Campbell data (.csv)}}
 ===== Initial blade =====
@@ Ligne 131: / Ligne 139: @@
 | 3     | 1T    | 10995.95                      | 1750,06                |
+====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:
+{{ :public:modeles:rotor_55:campbell_eng_55_ini.png?500 }}
+<caption>Campbell diagram computed with a linear centrifugal preload, with clamped root (nominal speed ωₙ = 839.85 rad/s),
+initial blade (orange), reference blade (gray) </caption>
+  * {{ :public:modeles:rotor_55:campbell_eng_55_ini.pdf |graph (.pdf)}}
+  * {{ :public:modeles:rotor_55:campbell_55_ini.csv |Campbell data (.csv)}}