Effect of Support Flexibility and Damping on the Dynamic Response of a Single Mass Flexible Rotor in Elastic Bearings |
Contents
INTRODUCTION | 1 |
FORCES TRANSMITTED | 10 |
OPTIMIZATION OF SUPPORT DAMPING FOR OFFTUNED CONDITIONS | 19 |
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Common terms and phrases
3.500 FREQUENCY RATIO Absolute Rotor Motion amplification factor AMPLITUDE RATIO X2/E ASME Attenuation bearing support C₁ Calcomp plotter damped flexible supports damping ratio dimensionless rotor displacement vector equations of motion Figure forces transmitted FREQUENCY RATIO W/WC gyroscopic increases initial transient motion Jeffcott model Journal Journal Bearings K₁ K₂ lb-sec/in LB-SEC/IN DC linear bearings low mass ratio M₂ M₂e M₂w² mass ratio support maximum rotor amplitude minimize the rotor moment of inertia optimum damping phase angle precession Ratio for Various ratio support system rigid support critical rotor critical speed rotor damping rotor mass ROTOR MAXIMUM AMPLITUDE rotor on rigid rotor response rotor system rotor-bearing system second critical speed single mass rotor speed range support amplitude support critical speed support damping coefficient support mass ratio support motion support stiffness ratio system critical speeds Trans tuned system Values of Support various damping Various Values vibration X₂ Y₂ Z₂