Research Article
Evaluation Method for Vibration Measurement on Casing in Aeroengine: Theoretical Analysis and Experimental Study
Table 1
Main parameters of the dual-rotor-casing system.
| | Dynamic parameter (unit) | Value |
| | Mass of high-pressure rotor, mhd (kg) | 5 | | Mass of low-pressure rotor 1, mld1 (kg) | 1.5 | | Mass of low-pressure rotor 2, mld2 (kg) | 2.5 | | Stiffness of high-pressure rotor shaft, khs (N/m) | 1 × 107 | | Stiffness of low-pressure rotor shaft 1, kl1 (N/m) | 1 × 107 | | Stiffness of low-pressure rotor shaft 2, kl2 (N/m) | 1 × 107 | | Support stiffness between front casing and base, kc1 (N/m) | 1 × 109 | | Support stiffness between middle casing and base, kc2 (N/m) | 1 × 109 | | Support stiffness between rear casing and base, kc3 (N/m) | 1 × 109 | | Support damping between front casing and base, cc1 (N·s/m) | 1500 | | Support damping between middle casing and base, cc2 (N·s/m) | 1500 | | Support damping between rear casing and base, cc3 (N·s/m) | 1500 |
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