Retention of damping media

Patent metadata

Field	Value
Publication number	US-9920650-B2
Application number	US-201514620292-A
Country	US
Kind code	B2
Filing date	Feb 12, 2015
Priority date	Feb 14, 2014
Publication date	Mar 20, 2018
Grant date	Mar 20, 2018

Abstract

An example method of assembling a particle damped gas turbine engine component according to an exemplary aspect of the present disclosure includes, among other things, holding damping media within a cavity of a gas turbine engine component using magnetic force.

First claim

We claim:

1. A method of assembling a particle damped gas turbine engine component, comprising:
holding damping media within a cavity of a gas turbine engine component using magnetic force, including covering the cavity with a cover during the holding.

2. The method of claim 1 , including holding the damping media within the cavity of a structural guide vane.

3. The method of claim 1 , including bonding the cover to the cavity and removing the magnetic force.

4. The method of claim 3 , wherein the damping media is free to move within the cavity after the bonding.

5. The method of claim 1 , including aligning magnetic fields to pass through the cavity and hold the damping media within the cavity.

6. The method of claim 1 , wherein the damping media comprises shot peen media.

7. The method of claim 1 , wherein an electromagnet selectively provides the magnetic force.

8. The method of claim 1 , including aligning a first pole adjacent a first side wall of the cavity and an opposing, second pole of the magnet adjacent an opposing, second side wall of the cavity.

9. The method of claim 2 , wherein the vane includes a vane body extending between a first platform and a second platform, and the cavity is formed on and extends inwardly from a side of the vane body.

10. The method of claim 9 , comprising:
bonding the cover to the cavity and removing the magnetic force;
aligning magnetic fields to pass through the cavity and hold the damping media within the cavity; and
wherein the damping media is free to move within the cavity after the bonding.

11. The method of claim 10 , wherein the damping media comprises shot peen media.

12. The method of claim 11 , comprising aligning a first pole adjacent a first side wall of the cavity and an opposing, second pole of the magnet adjacent an opposing, second side wall of the cavity, wherein an electromagnet selectively provides the magnetic force.

13. A method of assembling a particle damped gas turbine engine component, comprising:
holding damping media within a cavity of a gas turbine engine component using magnetic force, covering the cavity with a cover during the holding, wherein the gas turbine engine component is a vane.

14. The method of claim 13 , wherein the vane is a structural guide vane including a vane body extending between a first platform and a second platform, and the cavity is a plurality of cavities formed on at least one side of the vane body.

15. The method of claim 13 ,
comprising: aligning
magnetic fields to pass through the cavity and hold the damping media within the cavity; and
wherein the damping media is free to move within the cavity after the cover is secured to the component and the magnetic force is removed.

16. The method of claim 15 , wherein the vane is a structural guide vane including a vane body extending between a first platform and a second platform, and the cavity is a plurality of cavities formed on at least one side of the vane body.

17. The method of claim 16 , comprising:
bonding the cover to the cavity and removing the magnetic force;
wherein the step of aligning includes aligning a first pole adjacent a first side wall of the cavity and an opposing, second pole of the magnet adjacent an opposing, second side wall of the cavity;
wherein the damping media comprises shot peen media;
wherein the cavity is void of any container holding the vibration damping material; and
wherein the damping media directly contacts at least one of the vane body and the cover subsequent to the step of bonding.

Assignees

• United Technologies Corp

Inventors

• Hyatt Thomas B
• Ganoe Jr William Richard

Classifications

• B25B11/002 Primary

  Magnetic work holders · CPC title

• F05D2260/96

  Preventing, counteracting or reducing vibration or noise · CPC title

• Y10T29/49231

  I.C. [internal combustion] engine making · CPC title

• F01D9/02

  Nozzles; Nozzle boxes; Stator blades; Guide conduits {, e.g. individual nozzles (nozzle boxes F01D9/047)} · CPC title

• F05D2230/10

  by removing material · CPC title