公开(公告)号：US10266256B2

公开(公告)日：2019-04-23

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 ,  G01M17/04 ,  B64F5/60 ,  F16F15/02 ,  F16F15/023 ,  F16F9/342

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：US20190012849A1

公开(公告)日：2019-01-10

申请号：US15642129

申请日：2017-07-05

Applicant: Goodrich Corporation

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

IPC: G07C5/00 ,  G07C5/08 ,  F16F9/06 ,  F16F9/32 ,  F16F9/48

Abstract: A monitoring system for a dual-stage, separated gas/fluid shock strut may comprise a controller 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 various operations. Said operations may include calculating, by the controller, a secondary chamber nominal pressure, determining, by the controller, a shock strut stroke associated with the secondary chamber nominal pressure, calculating, by the controller, a volume of oil in an oil chamber of the shock strut, calculating, by the controller, a volume of gas in a primary chamber of the shock strut, calculating, by the controller, a secondary chamber inflation pressure, and calculating, by the controller, a volume of oil leaked into the primary chamber of the shock strut.

公开(公告)号：US20190012848A1

公开(公告)日：2019-01-10

申请号：US15642098

申请日：2017-07-05

Applicant: Goodrich Corporation

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

IPC: G07C5/00 ,  F16F9/06 ,  F16F9/32 ,  F16F9/48

Abstract: A monitoring system for a dual-stage, separated gas/fluid shock strut may comprise a controller 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 various operations. Said operations may include determining, by the controller, a shock strut stroke at which a secondary chamber of the shock strut is activated, calculating, by the controller, a volume of oil in an oil chamber of the shock strut, calculating, by the controller, a volume of gas in a primary chamber of the shock strut, and calculating, by the controller, a volume of oil leaked into the primary chamber of the shock strut.

公开(公告)号：US20150267769A1

公开(公告)日：2015-09-24

申请号：US14318055

申请日：2014-06-27

Applicant: Goodrich Corporation

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

IPC: F16F9/32 ,  B64C25/60 ,  G01F22/02 ,  G01L7/00 ,  G01K13/02 ,  G07C5/08 ,  G01M17/04

CPC classification number: F16F9/3264 ,  B64C25/60 ,  B64D2045/008 ,  B64F5/60 ,  F16F9/3292 ,  F16F2230/24 ,  F16F2230/46 ,  G01F22/02 ,  G01K13/02 ,  G01K2013/024 ,  G01L7/00 ,  G01M17/04 ,  G07C5/0808 ,  G07C5/0816 ,  G07C5/085

Abstract: A method and system of monitoring condition of a shock strut senses gas temperature, gas pressure, and stroke of the strut during a landing event. Oil loss is determined based upon a deviation of a transient pressure coefficient derived from transient gas pressures at two different strokes from a nominal coefficient value. Gas loss is determined based upon a temperature adjusted transient gas pressure at a selected stroke and a nominal gas pressure value at the selected stroke.

Abstract translation: 监测冲击支柱状态的方法和系统可以检测着陆事件中支柱的气体温度，气体压力和行程。 基于从两个不同冲程的瞬时气体压力导出的瞬时压力系数与标称系数值的偏差来确定油损失。 气体损失是根据所选冲程的温度调节过的气体压力和所选冲程的标称气体压力值来确定的。