US 11,808,166 B1
Additively manufactured bladed-disk having blades with integral tuned mass absorbers
Andrew Michael Brown, Huntsville, AL (US)
Assigned to United States of America as represented by the Administrator of NASA, Washington, DC (US)
Filed by United States of America as represented by the Administrator of NASA, Washington, DC (US)
Filed on Aug. 19, 2021, as Appl. No. 17/406,736.
Int. Cl. F01D 5/16 (2006.01); F01D 5/18 (2006.01); B33Y 80/00 (2015.01)
CPC F01D 5/16 (2013.01) [F01D 5/18 (2013.01); B33Y 80/00 (2014.12); F05D 2230/31 (2013.01); F05D 2240/307 (2013.01); F05D 2250/14 (2013.01); F05D 2250/62 (2013.01); F05D 2260/96 (2013.01)] 21 Claims
OG exemplary drawing
 
1. A monolithic blisk, comprising:
a disk portion having a periphery; and
a plurality of blades radially extending from the periphery and consecutively arranged in an annular array, each blade having a blade tip, a leading edge, a trailing edge, a pressure side and a suction side, each blade being configured to have an internal cavity having a cavity inner wall, wherein the internal cavity is located between the pressure side and suction side, each blade being further configured to have a tuned mass absorber located within the internal cavity, the tuned mass absorber comprising an elongate portion having a first end portion completely integral with the cavity inner wall and a free opposite second end portion, wherein the elongate portion and the free opposite second end portion do not contact the cavity inner wall as the tuned mass absorber absorbs vibrations during operation of the blisk.