This work provides an analytical technique for computing the seal face misalignment which results from synchronous whirl of the shaft. The eccentric dynamic response is obtained for seals in which both mating faces are mounted on flexible supports. Responses for seals with a single flexibly mounted stator or rotor are also obtained as degenerate cases of the more general result. Synchronous shaft whirl is shown to have a significant effect on the steady-state response of all these seals, while not affecting the stability threshold. The steady-state response is obtained by solution of a simple matrix equation for the general case, and can be obtained in closed form for the degenerate cases of the flexibly mounted stator or flexibly mounted rotor. A numerical example of the solution technique is presented, and the influence of speed is examined. Extension of the method to shaft motions other than synchronous whirl is briefly discussed.
Dynamic Response of Eccentric Face Seals to Synchronous Shaft Whirl
Contributed by the Tribology Division for publication in the ASME JOURNAL OF TRIBOLOGY. Manuscript received by the Tribology Division February 11, 2003; revised manuscript received July 15, 2003. Associate Editor: S. Wu.
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Wileman, J. (April 19, 2004). "Dynamic Response of Eccentric Face Seals to Synchronous Shaft Whirl ." ASME. J. Tribol. April 2004; 126(2): 301–309. https://doi.org/10.1115/1.1645294
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