公开(公告)号：US10724400B2

公开(公告)日：2020-07-28

申请号：US15949427

申请日：2018-04-10

Applicant: General Electric Company

Inventor： Shivaram Ac ,  Vidyashankar Ramasastry Buravalla ,  Ravindra Shankar Ganiger ,  Shuvajyoti Ghosh ,  Akash Joshi

IPC: F01D25/16 ,  F02C7/20 ,  F16F15/02 ,  F16C19/54 ,  F16F15/023 ,  F02C7/06 ,  F16C19/26 ,  F16C27/04 ,  F16C27/06 ,  F16F1/22

Abstract: A support assembly for a load-bearing unit, a gas turbine engine including the support assembly, and a method of operation of the support assembly are provided. The support assembly includes a support element, a damper, and a variable stiffness member. The support element supports the load-bearing unit. The damper supports the support element and is configured to provide dampening of the load-bearing unit. The variable stiffness member is positioned between the damper and the load-bearing unit. The variable stiffness member is configured to provide a serial dampening of the load-bearing unit with the damper. The variable stiffness member includes a shape memory alloy.

公开(公告)号：US20190128329A1

公开(公告)日：2019-05-02

申请号：US16226211

申请日：2018-12-19

Applicant: GENERAL ELECTRIC COMPANY

Inventor： Shuvajyoti Ghosh ,  Akash Joshi ,  Shivaram AC ,  Ravindra Shankar Ganiger ,  Praveen Sharma

IPC: F16C39/02 ,  F01D21/08 ,  F01D25/16 ,  F16C29/12 ,  F16C35/077 ,  F16C35/067

Abstract: A load reduction assembly includes an annular bearing cone configured to extend between a bearing assembly and a frame assembly and form a first load path therebetween. The load reduction assembly further includes an annular recoupler member configured to extend between the bearing assembly and the frame assembly and form a second load path therebetween. The second load path is parallel to the first load path. The recoupler member includes a shape memory alloy configured to change stiffness in response to a change in a stress condition, thereby regulating an imbalance condition of a rotor shaft coupled to the bearing assembly.

公开(公告)号：US20180112554A1

公开(公告)日：2018-04-26

申请号：US15331158

申请日：2016-10-21

Applicant: GENERAL ELECTRIC COMPANY

Inventor： Shuvajyoti Ghosh ,  Akash Joshi ,  Shivaram AC ,  Ravindra Shankar Ganiger ,  Praveen Sharma

IPC: F01D25/16 ,  F01D5/02 ,  F16C35/077 ,  F16C39/02

CPC classification number: F16C39/02 ,  F01D21/08 ,  F01D25/164 ,  F05D2260/15 ,  F05D2300/505 ,  F16C29/123 ,  F16C35/067 ,  F16C35/077 ,  F16C2202/06 ,  F16C2202/28 ,  F16C2360/23 ,  Y02T50/671

Abstract: A load reduction assembly includes an annular bearing cone configured to extend between a bearing assembly and a frame assembly and form a first load path therebetween. The load reduction assembly further includes an annular recoupler member configured to extend between the bearing assembly and the frame assembly and form a second load path therebetween. The second load path is parallel to the first load path. The recoupler member includes a shape memory alloy configured to change stiffness in response to a change in a stress condition, thereby regulating an imbalance condition of a rotor shaft coupled to the bearing assembly.