公开(公告)号：US11860060B2

公开(公告)日：2024-01-02

申请号：US17730120

申请日：2022-04-26

Applicant: RAYTHEON TECHNOLOGIES CORPORATION

Inventor： William D. Owen ,  Ron I. Prihar ,  Lawrence P. Roberts ,  Ming-Ta Yang

IPC: G01M15/14 ,  G01H1/00

CPC classification number: G01M15/14 ,  G01H1/006

Abstract: A method of repairing an integrally bladed rotor (IBR) may comprise: performing a vibratory analysis of a rotor module including a first inspected IBR with a potential repair shape for the IBR; determining an undesirable vibratory characteristic of a second inspected IBR in the rotor module; iterating the potential repair shape for the first IBR to eliminate the undesirable vibratory characteristic of the second inspected IBR; and repairing the first IBR with a selected repair shape based on determining the potential repair shape eliminates the undesirable vibratory characteristic.

公开(公告)号：US20230036153A1

公开(公告)日：2023-02-02

申请号：US17464837

申请日：2021-09-02

Applicant: Raytheon Technologies Corporation

Inventor： William D. Owen ,  Benjamin D. Hall ,  Emily Carolyn Roto Coleman ,  Cami Santor ,  Eric D. Kachel ,  Alex J. Brown

IPC: G01M15/14 ,  G06F30/20 ,  F02C7/32

Abstract: A process for scheduling engine inspection for a gas turbine engine includes computing an expected damage increment based on aircraft usage data of a single flight, computing a cumulative expected damage by summing the expected damage increment with a total set of historical expected damage increments since a previous maintenance, and determining an aggregate risk of failure based on the computed cumulative expected damage. A manual inspection is signaled when the aggregate risk of failure exceeds an acceptable risk threshold.