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TRANSIENT RESPONSE OF ROTOR MODEL

1. BACKGROUNDS
2. EXAMPLES OF CALCULATIONS AND OUTPUTS – LINEAR SPRING SUPPORTS
2.2 EXAMPLES OF CALCULATIONS AND OUTPUTS – DAMPER SUPPORTS

2.2 examples of calculations and outputs – damper supports

Spring supports replaced by two squeeze-film dampers

Unbalance transient response plot

Fig. 13 Unbalance transient response plot (unbalance section)

Fig. 14 Unbalance transient response of rotor (damper section)

Solution output

Fig. 15 Solution output, n = 1300 rpm (damper section )

Rotor orbits Rotor orbits
Rotor orbits Rotor orbits

Fig. 16 Rotor orbits for different rotation speeds n= 1000, 1300, 2000, 4000 rpm

Cascade spectra plot

Fig. 17 Cascade spectra plot for rotor with two squeeze film-dampers

Cascade spectra plot

Fig. 18 Cascade spectra plot for rotor with two squeeze film-damper

FFT spectrum plot

Fig.19. FFT spectrum plot