公开(公告)号：US20180017074A1

公开(公告)日：2018-01-18

申请号：US15208913

申请日：2016-07-13

Applicant: General Electric Company

Inventor： Sharan Shanti ,  Nandakumar AR ,  Christian Michael Hansen ,  Jeremy Peter Latimer

IPC: F04D29/54 ,  F04D29/64

CPC classification number: F04D29/542 ,  F01D9/042 ,  F04D29/644 ,  F05B2220/302 ,  F05B2230/60 ,  F05D2230/642 ,  F05D2260/40 ,  Y02T50/673

Abstract: This disclosure provides systems and methods for reducing stress in vane shroud assemblies by defining a gap between adjacent portions of the airfoil and the shroud whereby stress from the securing force is relieved in a portion of the shroud. The airfoil has a distal end with a contact surface and a tenon. The shroud has a contact surface with the airfoil and accommodates the tenon. An attachment device provides the securing force between the airfoil and shroud contact surfaces through the shroud and the gap serves to reduce stress on the shroud.