Response of a Warped Flexible Rotor with a Fluid Bearing

Figure 14

Synchronous response of a bowed rotor at midplane disk. Ro = .64, ao = 180^∘. Drop out of data near 2000 rpm is due to displacement exceeding transducer range. Phase wrap evident in the experimental plot around 1700 rpm and above 3500 rpm is due to software that adds 360^∘ for phase ranges beyond 360^∘.

(a)

(b)