公开(公告)号：US20170198715A1

公开(公告)日：2017-07-13

申请号：US15383185

申请日：2016-12-19

Applicant: ROLLS-ROYCE plc ,  Rolls-Royce Corporation

Inventor： Eric W. ENGEBRETSEN ,  Andrew T. BACKLER ,  Julian M. REED ,  Ewan F. THOMPSON

IPC: F04D29/52 ,  F04D29/38 ,  F04D29/32 ,  F02K3/06 ,  F04D19/00

CPC classification number: F04D29/526 ,  F01D11/122 ,  F02K3/06 ,  F04D19/002 ,  F04D29/325 ,  F04D29/38 ,  F05D2220/32 ,  F05D2220/36 ,  F05D2250/712

Abstract: A fan casing arrangement for a gas turbine engine, the arrangement comprising an annular casing member and a fan track liner provided radially inward of the casing member and connected thereto. A forward portion of a gas washed surface of the fan track liner is curved so as to define a concave portion of the gas washed surface (e.g. curved such that the radial position of said forward portion of the gas washed surface varies in an axial direction).

公开(公告)号：US20230314249A1

公开(公告)日：2023-10-05

申请号：US18183999

申请日：2023-03-15

Applicant: ROLLS-ROYCE plc

Inventor： Zhen ZHOU ,  Duncan A. MACDOUGALL ,  Julian M. REED

IPC: G01L5/1627 ,  G01L1/22

CPC classification number: G01L5/1627 ,  G01L1/2218 ,  G01L1/2287

Abstract: A system and a method of testing a specimen. The system includes an endcap, a plurality of bars, a plurality of strain gauges, and a gas gun. The endcap includes a first surface and a second surface opposite to the first surface. The first surface is curved. Each bar is disposed in contact with the second surface of the endcap and extends along a longitudinal axis. Each strain gauge is disposed on a surface of a corresponding bar from the plurality of bars. At least one strain gauge is disposed on the surface of each bar. The gas gun is configured to fire a specimen towards the first surface of the endcap such that the specimen impacts the first surface at an oblique angle relative to the longitudinal axis.