Mass balancing of hollow fan bladesA typical section model is used to analytically investigate the effect of mass balancing as applied to hollow, supersonic fan blades. A procedure to determine the best configuration of an internal balancing mass to provide flutter alleviation is developed. This procedure is applied to a typical supersonic shroudless fan blade which is unstable in both the solid configuration and when it is hollow with no balancing mass. The addition of an optimized balancing mass is shown to stabilize the blade at the design condition.
Document ID
19860063507
Acquisition Source
Legacy CDMS
Document Type
Conference Paper
Authors
Kielb, R. E. (NASA Lewis Research Center Cleveland, OH, United States)