公开(公告)号：US11928811B2

公开(公告)日：2024-03-12

申请号：US17217427

申请日：2021-03-30

Applicant: Raytheon Technologies Corporation

Inventor： Amit Surana ,  Sudarshan N. Koushik ,  Kenji Homma

IPC: G06T7/00 ,  G01H9/00 ,  G01M7/00

CPC classification number: G06T7/001 ,  G01H9/00 ,  G01M7/00

Abstract: A method for determining structural vibration mode characteristics includes preparing a digital image correlation (DIC) dataset for the component, applying a dynamic mode decomposition (DMD) technique to the DIC dataset to determine a plurality of DMD modes, selecting at least one dominant DMD mode from the plurality of DMD modes, classifying each of the at least one selected dominant DMD mode as a standing wave or a traveling wave, and determining structural vibration mode characteristics of the component by extracting the structural vibration mode characteristics from each of the at least one selected dominant DMD mode having a standing wave classification.

公开(公告)号：US20220318973A1

公开(公告)日：2022-10-06

申请号：US17217427

申请日：2021-03-30

Applicant: Raytheon Technologies Corporation

Inventor： Amit Surana ,  Sudarshan N. Koushik ,  Kenji Homma

IPC: G06T7/00 ,  G01H9/00

Abstract: A method for determining structural vibration mode characteristics includes preparing a digital image correlation (DIC) dataset for the component, applying a dynamic mode decomposition (DMD) technique to the DIC dataset to determine a plurality of DMD modes, selecting at least one dominant DMD mode from the plurality of DMD modes, classifying each of the at least one selected dominant DMD mode as a standing wave or a traveling wave, and determining structural vibration mode characteristics of the component by extracting the structural vibration mode characteristics from each of the at least one selected dominant DMD mode having a standing wave classification