Internally damped blades

Details Internally damped blades Internally damped blades

1992-01-17

1993-08-03

Kwon, John T.

Fluid reaction surfaces (i.e., impellers)

With weight-balancing means

Self-shifting or selectively adjustable mass

416500, F01D 510, F01D 526

Patent

active

052323447

ABSTRACT:
A twisted compressor or fan hollow blade is damped by an internal loose slug. The slug contacts the skin of the blade at two transversely spaced locations. This slug is located with its center of gravity eccentric of a radial line through the contact location.

REFERENCES:
patent: 2689107 (1954-09-01), Odegaard
patent: 2862686 (1958-12-01), Bartlett
patent: 4118147 (1978-10-01), Ellis
patent: 4441859 (1984-04-01), Sadler

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