公开(公告)号：US20210086891A1

公开(公告)日：2021-03-25

申请号：US16592602

申请日：2019-10-03

Applicant: GOODRICH CORPORATION

Inventor： Amir Fazeli ,  Adnan Cepic

IPC: B64C25/22 ,  B64C25/24 ,  B64C25/50

Abstract: A nose landing gear system is disclosed. In various embodiments, the nose landing gear system includes an electro-hydraulic actuator configured to raise and lower a nose shock strut assembly; a first electro-mechanical actuator configured to steer the nose shock strut assembly; and a second electro-mechanical actuator configured to open and close a fairing door.

公开(公告)号：US20200324920A1

公开(公告)日：2020-10-15

申请号：US16381981

申请日：2019-04-11

Applicant: GOODRICH CORPORATION

Inventor： Amir Fazeli ,  Susanne M. Reber ,  Adnan Cepic

IPC: B64F5/60 ,  G07C5/08 ,  G01F22/02

Abstract: A method for monitoring a dual-stage shock strut may include measuring a first primary chamber pressure when the dual-stage shock strut is in a first state, measuring a first secondary chamber pressure when the dual-stage shock strut is in the first state, measuring a shock strut stroke when the dual-stage shock strut is in the first state, measuring a first temperature, measuring a second temperature, measuring a second primary chamber pressure when the dual-stage shock strut is in a second state, measuring a second secondary chamber pressure when the dual-stage shock strut is in the second state, and determining a servicing condition of the shock strut based upon at least the first primary chamber pressure, the first secondary chamber pressure, the shock strut stroke, the first temperature, the second temperature, the second primary chamber pressure, and the second secondary chamber pressure.

公开(公告)号：US20200249129A1

公开(公告)日：2020-08-06

申请号：US16267555

申请日：2019-02-05

Applicant: GOODRICH CORPORATION

Inventor： Amir Fazeli ,  Adnan Cepic ,  Susanne M. Reber

IPC: G01M17/04 ,  F16F9/32 ,  B64F5/60 ,  B64C25/60

Abstract: A method for monitoring a shock strut may comprise measuring a first shock strut pressure, measuring an ambient temperature, measuring a shock strut stroke, measuring a second shock strut pressure, and determining a servicing condition of the shock strut based upon the first shock strut pressure, the ambient temperature, the shock strut stroke, and the second shock strut pressure, wherein the servicing condition indicates whether it is desirable for the shock strut to be serviced with at least one of a liquid and a gas. The first shock strut pressure and the shock strut stroke may be measured before the takeoff event with a weight of an aircraft supported by the shock strut.

公开(公告)号：US20190180522A1

公开(公告)日：2019-06-13

申请号：US16281715

申请日：2019-02-21

Applicant: GOODRICH CORPORATION

Inventor： Amir Fazeli ,  Adnan Cepic ,  Susanne M. Reber

IPC: G07C5/00 ,  F16F9/06 ,  F16F9/32 ,  G01M17/04 ,  B64F5/60 ,  F16F9/48 ,  B64C25/60

Abstract: A dual-stage, separated gas/fluid shock strut arrangement includes a dual-stage, separated gas/fluid shock strut and a monitoring system. The shock strut includes a strut cylinder, a strut piston operatively coupled to the strut cylinder, an oil chamber, a primary gas chamber, and a secondary gas chamber. The monitoring system includes a first pressure/temperature sensor, a second pressure/temperature sensor, a stroke sensor, a recorder configured to receive a plurality of sensor readings from the first pressure/temperature sensor, the second pressure/temperature sensor, and/or the stroke sensor, a landing detector configured to detect a landing event based upon a stroke sensor reading received from the stroke sensor, and a health monitor configured to determine a volume of oil in the oil chamber, a primary chamber gas volume in the primary gas chamber, and a secondary chamber gas volume in the secondary gas chamber.

公开(公告)号：US20180273162A1

公开(公告)日：2018-09-27

申请号：US15642058

申请日：2017-07-05

Applicant: Goodrich Corporation

Inventor： Amir Fazeli ,  Adnan Cepic ,  Susanne M. Reber

IPC: B64C25/60 ,  F16F9/06 ,  F16F9/32 ,  F16F9/48

CPC classification number: B64C25/60 ,  B64F5/60 ,  F16F9/062 ,  F16F9/063 ,  F16F9/065 ,  F16F9/3292 ,  F16F9/342 ,  F16F9/486 ,  F16F15/022 ,  F16F15/023 ,  F16F2222/12 ,  F16F2230/0047 ,  F16F2230/183 ,  F16F2230/24 ,  F16F2236/045 ,  G01L2019/0053 ,  G01M17/04

Abstract: A monitoring system for a dual-stage, pressure-activated, mixed fluid gas shock strut, may comprise a controller, and a tangible, non-transitory memory configured to communicate with the controller, the tangible, non-transitory memory having instructions stored thereon that, in response to execution by the controller, cause the controller to perform operations comprising receiving, by the controller, a primary chamber temperature sensor reading, receiving, by the controller, a primary chamber pressure sensor reading, receiving, by the controller, a shock strut stroke sensor reading, and calculating, by the controller, an oil volume in a primary chamber of the shock strut. The instructions may cause the controller to perform further operations comprising calculating, by the controller, a number of moles of gas in a primary chamber of the shock strut and calculating, by the controller, a number of moles of gas in a secondary chamber of the shock strut.

公开(公告)号：US20180156297A1

公开(公告)日：2018-06-07

申请号：US15886500

申请日：2018-02-01

Applicant: Goodrich Corporation

Inventor： Amir Fazeli ,  Adnan Cepic ,  Susanne Reber

IPC: F16F9/32 ,  B64F5/60 ,  G01M17/04 ,  B64C25/60

CPC classification number: F16F9/3271 ,  B64C25/60 ,  B64F5/40 ,  B64F5/50 ,  B64F5/60 ,  F16F2230/46 ,  G01M17/04

Abstract: A shock strut servicing assistance system may comprise a controller including a display, and a tangible, non-transitory memory configured to communicate with the controller. The tangible, non-transitory memory may have instructions stored thereon that, in response to execution by the controller, cause the controller to perform operations comprising calculating, by the controller, a first fluid level, generating, by the controller, a first datum corresponding to the first fluid level, receiving, by the shock strut, a fluid in response to the first datum, calculating, by the controller, a second fluid level, generating, by the controller, a second datum, and storing, by the controller, a final fluid level.

公开(公告)号：US11579047B2

公开(公告)日：2023-02-14

申请号：US16267555

申请日：2019-02-05

Applicant: GOODRICH CORPORATION

Inventor： Amir Fazeli ,  Adnan Cepic ,  Susanne M. Reber

IPC: G01M17/04 ,  B64F5/60 ,  B64C25/60 ,  F16F9/32

Abstract: A method for monitoring a shock strut may comprise measuring a first shock strut pressure, measuring an ambient temperature, measuring a shock strut stroke, measuring a second shock strut pressure, and determining a servicing condition of the shock strut based upon the first shock strut pressure, the ambient temperature, the shock strut stroke, and the second shock strut pressure, wherein the servicing condition indicates whether it is desirable for the shock strut to be serviced with at least one of a liquid and a gas. The first shock strut pressure and the shock strut stroke may be measured before the takeoff event with a weight of an aircraft supported by the shock strut.

公开(公告)号：US11367315B2

公开(公告)日：2022-06-21

申请号：US17067221

申请日：2020-10-09

Applicant: GOODRICH CORPORATION

Inventor： Amir Fazeli ,  Adnan Cepic ,  Susanne M. Reber

IPC: G07C5/00 ,  B64C25/60 ,  F16F9/32 ,  G01M17/04 ,  B64F5/60 ,  F16F9/06 ,  F16F9/48 ,  F16F9/342 ,  F16F15/02 ,  F16F15/023 ,  G07C5/08

Abstract: A method for monitoring a dual-stage, separated gas/fluid shock strut includes receiving, by a controller, primary chamber temperature and pressure sensor readings, secondary chamber pressure and temperature sensor readings, and a shock strut stroke sensor reading, determining, by the controller, a shock strut stroke at which a secondary chamber is activated, calculating, by the controller, a volume of oil in an oil chamber of the shock strut, a primary chamber gas volume of, a number of moles of gas in, and a volume of oil leaked into, a primary gas chamber of the shock strut, a secondary chamber gas volume in, a volume of oil leaked into, and a number of moles of gas in, the secondary chamber, based upon at least one of the secondary chamber pressure sensor reading, and the secondary chamber temperature sensor reading.

公开(公告)号：US20220011189A1

公开(公告)日：2022-01-13

申请号：US16927813

申请日：2020-07-13

Applicant: GOODRICH CORPORATION

Inventor： Susanne M. Reber ,  Kevin Hawko ,  Amir Fazeli ,  Adnan Cepic

IPC: G01M1/12 ,  B64C25/60

Abstract: A system and various methods for determining a center of mass of an aircraft with a plurality of shock strut assemblies is illustrated. Multiple sensors, including a gas pressure sensor, and/or a position sensor, may be used to gather data and determine the center of mass of the aircraft. Various methods illustrated herein may evaluate the center of mass relative to a wheelbase axis and a wheel tread axis based on the gathered data.

公开(公告)号：US09915314B2

公开(公告)日：2018-03-13

申请号：US14934924

申请日：2015-11-06

Applicant: Goodrich Corporation

Inventor： Amir Fazeli ,  Adnan Cepic ,  Susanne Reber

IPC: B64F5/40 ,  F16F9/32 ,  B64C25/60 ,  B64F5/00 ,  G01M17/04 ,  B64F5/60

CPC classification number: F16F9/3271 ,  B64C25/60 ,  B64F5/0081 ,  B64F5/50 ,  B64F5/60 ,  F16F2230/46 ,  G01M17/04

Abstract: System and methods for servicing and monitoring shock struts are provided. A method for servicing a shock strut may include calculating a first fluid level; generating a first datum corresponding to the first fluid level; moving fluid into the shock strut in accordance with the first datum; calculating a second fluid level; generating a second datum corresponding to the second fluid level; and storing a final fluid level.