US 12,264,592 B2
Local vibration damping for gas turbine engine housing
Negin Abaeian, Westmount (CA); Morgan Demenois, Montreal (CA); Tomasz Olech, Rzeszow (PL); Raghavendra Pendyala, Montreal (CA); and Domenico Di Florio, Saint Lazare (CA)
Assigned to PRATT & WHITNEY CANADA CORP., Longueuil (CA)
Filed by Pratt & Whitney Canada Corp., Longueuil (CA)
Filed on Jul. 7, 2023, as Appl. No. 18/348,903.
Prior Publication US 2025/0012203 A1, Jan. 9, 2025
Int. Cl. F01D 25/04 (2006.01); F04D 29/66 (2006.01); F16F 15/02 (2006.01); F02C 7/20 (2006.01)
CPC F01D 25/04 (2013.01) [F04D 29/668 (2013.01); F16F 15/02 (2013.01); F02C 7/20 (2013.01); F05D 2240/14 (2013.01); F05D 2260/96 (2013.01)] 10 Claims
OG exemplary drawing
 
1. A method of providing a casing for a gas turbine engine comprising the steps of:
1) modeling a casing design for the casing to be formed of sheet metal;
2) determining peak displacement points based upon the modeling of step 1); and
3) providing a damper at at least one of the peak displacement points, the damper having one end fixed to a wall of the casing and a second end which is not fixed to the wall of the casing and having a relaxed position that it cannot reach due to the wall of the casing.