High stiffness seals for rotor critical speed controlAn annular seal is analyzed in which the inlet clearance is larger than the outlet clearance; the flow path may be either stepped or tapered. This design produces radial stiffnesses 1.7 to 14 times that of a constant-clearance seal having the same minimum clearance. When sealing high-pressure fluids, such as a seal can improve rotor stability and can be used to shift troublesome critical speeds to a more suitable location.
Document ID
19780036682
Acquisition Source
Legacy CDMS
Document Type
Conference Paper
Authors
Fleming, D. P. (NASA Lewis Research Center Cleveland, Ohio, United States)