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Abstract: The angular wobbly self-excited vibration(AWs-EV) with the
half-frequency of primary ring for fluids film face seal is intrinsic
property, being similar to “half-frequency whirl” in journal bearings of
hydrodynamic lubrication. Based on the continuity principle of fluids
flow, a mechanism of explaining the generation of AWs-EV and the reason
of the half-frequency characteristic is described.
Key words: Gas film face seal Angular wobbly self-excited
vibration Stability
CLC No: V233.42
辽宁省科学技术厅科学技术计划资助项目(99 303017). Received 20010924, received in revised
form 20020228
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