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public:modeles:rotor_37:accueil [2024/07/24 13:41] – [Diagramme de Campbell] solenekojtychpublic:modeles:rotor_37:accueil [2024/08/07 16:58] (Version actuelle) – [Natural frequencies] rafaelbarraud
Ligne 111: Ligne 111:
  
 ====Campbell diagram==== ====Campbell diagram====
-Evolution of the natural frequencies of the first 3 vibration modes (with clamped root), as a function of rotation speed, for the mesh computed with OpenMCAD[(cite:Kojtych_2022_gene_aubes)]:+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_37:campbell_eng_37_ref.png?500 }} {{ :public:modeles:rotor_37:campbell_eng_37_ref.png?500 }}
-<caption>Campbell diagram computed with a linear centrifugal preload, nominal rotation speed ωₙ = 1 800 rad/s</caption>+<caption>Campbell diagram computed with a linear centrifugal preload, with clamped root (nominal rotation speed ωₙ = 1 800 rad/s)</caption>
  
-  * {{ :public:modeles:rotor_37:campbell_eng_37_ref.pdf |graph (.pdf)}}}+  * {{ :public:modeles:rotor_37:campbell_eng_37_ref.pdf |graph (.pdf)}}
   * {{ :public:modeles:rotor_37:campbell_37_ref.csv |Campbell data (.csv)}}   * {{ :public:modeles:rotor_37:campbell_37_ref.csv |Campbell data (.csv)}}
  
Ligne 133: Ligne 133:
  
 ^ Mode  ^ Type  ^ Natural angular frequency (rad/sec)  ^ Natural frequency (Hz)  ^ ^ Mode  ^ Type  ^ Natural angular frequency (rad/sec)  ^ Natural frequency (Hz)  ^
-| 1     | 1B    | 5331.54                       | 848.541                  |+| 1     | 1B    | 5331.54                       | 848.54                  |
 | 2     | 1T    | 15903.75                      | 2531.16                  | | 2     | 1T    | 15903.75                      | 2531.16                  |
 | 3     | 2B    | 19317.21                      | 3074.43                  | | 3     | 2B    | 19317.21                      | 3074.43                  |
Ligne 146: Ligne 146:
  
 ====Campbell diagram==== ====Campbell diagram====
-Comparison of the evolution of the natural frequencies of the first 3 vibration modes (with clamped root) as a function of rotation speed for the initial and the reference blade:+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_37:campbell_eng_37_ini.png?500 }} {{ :public:modeles:rotor_37:campbell_eng_37_ini.png?500 }}
  
  
-<caption>Campbell diagram computed with a linear centrifugal preload, nominal speed ωₙ = 1 800 rad/s, +<caption>Campbell diagram computed with a linear centrifugal preload, with clamped root (nominal speed ωₙ = 1 800 rad/s), 
  
 initial blade (orange), reference blade (gray) </caption> initial blade (orange), reference blade (gray) </caption>
  
   * {{ :public:modeles:rotor_37:campbell_eng_37_ini.pdf |graph (.pdf)}}   * {{ :public:modeles:rotor_37:campbell_eng_37_ini.pdf |graph (.pdf)}}
-  * {{ :public:modeles:rotor_37:campbell_37_ini.csv |data from the Campbell (.csv)}}+  * {{ :public:modeles:rotor_37:campbell_37_ini.csv |Campbell data (.csv)}}
  
  
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