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Validation of computer-generated results with experimental data obtained for torsional vibration of synchronous motor-driven turbomachinery
(Texas A&M University, 2004-09-30)
Torsional vibration is an oscillatory angular twisting motion in the rotating members of a system. It can be deemed quite dangerous in that it cannot be detected as easily as other forms of vibration, and hence, subsequent ...
On the characteristics of fault-induced rotor-dynamic bifurcations and nonlinear responses
(Texas A&M University, 2004-11-15)
Rotor-dynamic stability is a very important subject impacting the design, control, maintenance, and operating safety and reliability of rotary mechanical systems. As rotor-dynamic nonlinearities are significantly more ...
The influence of internal friction on rotordynamic instability
(Texas A&M University, 2004-09-30)
Internal friction has been known to be a cause of whirl instability in built-up rotors since the early 1900's. This internal damping tends to make the rotor whirl at shaft speeds greater than a critical speed, the whirl ...
Rotordynamics/discharge water-hammer coupling via seals in pump rotordynamics
(Texas A&M University, 2004-09-30)
A new closed-loop frequency-domain model is developed to incorporate the water hammer effect with pump rotordynamics, in order to investigate the sub-synchronous instability problem observed in a field pump. Seal flow-rate ...