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

公开(公告)号：US11781485B2

公开(公告)日：2023-10-10

申请号：US17535270

申请日：2021-11-24

Applicant: RAYTHEON TECHNOLOGIES CORPORATION

Inventor： Julian Winkler ,  Kenji Homma ,  Craig Aaron Reimann ,  Jeffrey Michael Mendoza

IPC: F02C7/24 ,  F23R3/00 ,  F02C7/045

CPC classification number: F02C7/24 ,  F02C7/045 ,  F23R3/002 ,  B32B2307/10 ,  F05D2240/35 ,  F05D2260/964 ,  F23R2900/00014 ,  F23R2900/03045

Abstract: A noise attenuation panel for a structure within a propulsion system includes a first plurality of unit cells; and a second plurality of unit cells, the second plurality of unit cells merged within the first plurality of unit cells, the first plurality of unit cells including a first periodic structure having a first unit cell, a second unit cell, a third unit cell and a fourth unit cell, each of the first unit cell, the second unit cell, the third unit cell and the fourth unit cell including a central body interconnected via a plurality of lateral tubes extending from the central body, the first periodic structure forming a first lateral layer of unit cells.

公开(公告)号：US20230160343A1

公开(公告)日：2023-05-25

申请号：US17535270

申请日：2021-11-24

Applicant: RAYTHEON TECHNOLOGIES CORPORATION

Inventor： Julian Winkler ,  Kenji Homma ,  Craig Aaron Reimann ,  Jeffrey Michael Mendoza

IPC: F02C7/24 ,  F23R3/00

CPC classification number: F02C7/24 ,  F23R3/002 ,  F23R2900/00014 ,  F23R2900/03045 ,  F05D2240/35 ,  F05D2260/964

Abstract: A noise attenuation panel for a structure within a propulsion system includes a first plurality of unit cells; and a second plurality of unit cells, the second plurality of unit cells merged within the first plurality of unit cells, the first plurality of unit cells including a first periodic structure having a first unit cell, a second unit cell, a third unit cell and a fourth unit cell, each of the first unit cell, the second unit cell, the third unit cell and the fourth unit cell including a central body interconnected via a plurality of lateral tubes extending from the central body, the first periodic structure forming a first lateral layer of unit cells.

公开(公告)号：US20230117838A1

公开(公告)日：2023-04-20

申请号：US17503285

申请日：2021-10-16

Applicant: RAYTHEON TECHNOLOGIES CORPORATION

Inventor： Craig Aaron Reimann ,  Julian Winkler ,  Kenji Homma ,  Jeffrey Michael Mendoza ,  Ramons A. Reba

IPC: G10K11/16 ,  F02C7/24

Abstract: An acoustic attenuation structure for a gas turbine engine includes a periodic structure having a first unit cell, the first unit cell having a first central body and a first axial tube disposed on the first central body and a second axial tube disposed on the first central body, opposite the first axial tube, each of the first axial tube and the second axial tube being in fluid communication with one another through the first central body.

公开(公告)号：US20240210354A1

公开(公告)日：2024-06-27

申请号：US18088280

申请日：2022-12-23

Applicant: Raytheon Technologies Corporation

Inventor： Julian Winkler ,  Kenji Homma ,  Jeffrey L. Cipolla

IPC: G01N29/02 ,  G01N29/24

CPC classification number: G01N29/02 ,  G01N29/24 ,  G01N2291/022 ,  G01N2291/106

Abstract: A resonator array panel includes a perforated first sheet, a second sheet, and a resonator core. The perforated first sheet includes a first sheet body. The second sheet includes a second sheet body. The second sheet body includes a second exterior side surface and a second interior side surface. The first resonator core is disposed between the perforated first sheet and the second sheet. The first resonator core includes a first plurality of sidewalls. The first plurality of sidewalls forms a first plurality of resonators between the perforated first sheet and the second sheet. The first plurality of resonators includes a first resonator. The first resonator includes a first viscoelastic body disposed within the first resonator cavity.

公开(公告)号：US11565496B2

公开(公告)日：2023-01-31

申请号：US17067235

申请日：2020-10-09

Applicant: Raytheon Technologies Corporation

Inventor： John A. Sharon ,  Kenji Homma ,  Justin R. Hawkes ,  Paul R. Braunwart ,  Ellen Y. Sun

IPC: B32B3/28 ,  B32B15/04 ,  B32B5/02 ,  B32B15/02 ,  B32B15/14 ,  B32B15/18 ,  B32B15/20 ,  B32B27/12 ,  B32B3/26 ,  B64C1/40 ,  B64D33/02

Abstract: A structural panel includes a first skin, a second skin and a core. The core is connected to the first skin and the second skin. The core includes a corrugated sheet of wire mesh that includes a plurality of corrugations. Each of the corrugations extends vertically between and engages the first skin and the second skin.

公开(公告)号：US20210023810A1

公开(公告)日：2021-01-28

申请号：US17067235

申请日：2020-10-09

Applicant: Raytheon Technologies Corporation

Inventor： John A. Sharon ,  Kenji Homma ,  Justin R. Hawkes ,  Paul R. Braunwart ,  Ellen Y. Sun

IPC: B32B3/28 ,  B32B15/04 ,  B32B5/02 ,  B32B15/02 ,  B32B15/14 ,  B32B15/18 ,  B32B15/20 ,  B32B27/12 ,  B32B3/26 ,  B64C1/40

Abstract: A structural panel includes a first skin, a second skin and a core. The core is connected to the first skin and the second skin. The core includes a corrugated sheet of wire mesh that includes a plurality of corrugations. Each of the corrugations extends vertically between and engages the first skin and the second skin.

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：US11830467B2

公开(公告)日：2023-11-28

申请号：US17503285

申请日：2021-10-16

Applicant: RAYTHEON TECHNOLOGIES CORPORATION

Inventor： Craig Aaron Reimann ,  Julian Winkler ,  Kenji Homma ,  Jeffrey Michael Mendoza ,  Ramons A. Reba

IPC: G10K11/16 ,  F02C7/24

CPC classification number: G10K11/16 ,  F02C7/24 ,  F05D2220/323 ,  F05D2260/96

Abstract: An acoustic attenuation structure for a gas turbine engine includes a periodic structure having a first unit cell, the first unit cell having a first central body and a first axial tube disposed on the first central body and a second axial tube disposed on the first central body, opposite the first axial tube, each of the first axial tube and the second axial tube being in fluid communication with one another through the first central body.