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    DUAL STAGE STROKE ACTIVATED SHOCK STRUT SERVICE MONITORING USING SENSORS AND PHYSICAL STRUT MEASUREMENT
    12.
    发明申请
    DUAL STAGE STROKE ACTIVATED SHOCK STRUT SERVICE MONITORING USING SENSORS AND PHYSICAL STRUT MEASUREMENT 审中-公开

    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.

    SHOCK STRUT SERVICE MONITORING USING SENSORS AND PHYSICAL STRUT MEASUREMENT
    13.
    发明申请
    SHOCK STRUT SERVICE MONITORING USING SENSORS AND PHYSICAL STRUT MEASUREMENT 审中-公开

    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.

    DUAL-STAGE, SEPARATED GAS/FLUID SHOCK STRUT SERVICING MONITORING SYSTEM USING TWO PRESSURE/TEMPERATURE SENSORS
    14.
    发明申请
    DUAL-STAGE, SEPARATED GAS/FLUID SHOCK STRUT SERVICING MONITORING SYSTEM USING TWO PRESSURE/TEMPERATURE SENSORS 审中-公开

    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.

    Dual-stage, stroke-activated, mixed fluid gas shock strut servicing monitoring system
    19.
    发明授权
    Dual-stage, stroke-activated, mixed fluid gas shock strut servicing monitoring system 有权

    公开(公告)号：US11364997B2

    公开(公告)日：2022-06-21

    申请号：US17067265

    申请日：2020-10-09

    Applicant: GOODRICH CORPORATION

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

    IPC: B64C25/60 ,  B64F5/60 ,  B64F5/40 ,  F16F9/06 ,  F16F9/32

    Abstract: A method for monitoring a dual-stage, stroke activated, mixed fluid gas 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, calculating, by the controller, a compression factor, determining, by the controller, a plurality of compression factors for known oil volumes based on the primary chamber temperature sensor reading and/or the shock strut stroke sensor reading, and calculating, by the controller, an oil volume in a primary chamber of the shock strut, a number of moles of gas in the primary chamber of the shock strut, a volume of gas in a secondary chamber of the shock strut, and a number of moles of gas in the secondary chamber.

    SHOCK STRUT ASSEMBLIES FOR LANDING GEAR
    20.
    发明申请
    SHOCK STRUT ASSEMBLIES FOR LANDING GEAR 有权

    公开(公告)号：US20220185462A1

    公开(公告)日：2022-06-16

    申请号：US17124266

    申请日：2020-12-16

    Applicant: Goodrich Corporation

    Inventor： Amir Fazeli ,  Susanne M. Reber

    IPC: B64C25/60 ,  B64C25/62

    Abstract: A shock strut assembly for a landing gear may comprise a strut cylinder, a strut piston configured to telescope relative to the strut cylinder, and a locking system. The locking system may be configured to restrict rotation of the strut piston relative to the strut cylinder in response to compression of the shock strut assembly.

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