US 11,940,032 B2
Damping device for damping shaft vibration
Richard Schmidt, Loveland, OH (US); Bugra Han Ertas, Niskayuna, NY (US); and Weize Kang, Mason, OH (US)
Assigned to General Electric Company, Schenectady, NY (US)
Filed by General Electric Company, Schenectady, NY (US)
Filed on Aug. 14, 2018, as Appl. No. 16/103,314.
Prior Publication US 2020/0056677 A1, Feb. 20, 2020
Int. Cl. F16F 15/16 (2006.01); F01D 25/16 (2006.01)
CPC F16F 15/16 (2013.01) [F01D 25/164 (2013.01); F16C 2360/23 (2013.01)] 16 Claims
OG exemplary drawing
 
1. A turbomachine, comprising:
a shaft rotatable about an axis of rotation;
a support structure; and
a damping device positioned between the support structure and the shaft, the damping device comprising:
a housing defining a chamber configured to receive a damping fluid; and
a damping disc operatively coupled with the shaft and at least partially received within the chamber, wherein the damping disc is configured to wobble within the chamber about a first axis orthogonal to the axis of rotation and a second axis orthogonal to the first axis and the axis of rotation to move the damping fluid such that the damping fluid absorbs bending vibration emitted by the shaft;
wherein the turbomachine defines a radial direction extending orthogonal to and from the axis of rotation, and wherein the damping disc has a thickness defined between a first face and a second face opposing the first face, and wherein the damping disc comprises a hub portion defining a pass-through aperture through which the shaft extends, and wherein the damping disc extends outward from the hub portion to an outer periphery along the radial direction, and wherein the thickness of the damping disc gradually changes from the hub portion to the outer periphery.