公开(公告)号：US20230145838A1

公开(公告)日：2023-05-11

申请号：US17915978

申请日：2021-03-30

Applicant: AIRBUS OPERATIONS LIMITED

Inventor： Kayvon BARAD ,  Christopher WOOD ,  Andrew RAMSHAW

IPC: G01L1/24 ,  G01L5/00 ,  G01K11/3206

CPC classification number: G01L1/246 ,  G01L5/0019 ,  G01K11/3206 ,  G01K13/08

Abstract: An assembly having a bearing with an axis of rotation, and a fibre-based sensor for sensing strain or temperature of the bearing is disclosed. The sensor extends in a direction parallel to the axis of rotation. An aircraft system is disclosed including a wheel supported on an axle by a first bearing and a second bearing. The system further includes a first fibre optic sensor for sensing a strain or temperature of the first bearing, a second fibre optic sensor for sensing a strain or temperature of the second bearing, and an interrogator to analyse optical signals from the sensors to determine differences in the strains or temperatures of the first bearing and the second bearing.

公开(公告)号：US20220373023A1

公开(公告)日：2022-11-24

申请号：US17764735

申请日：2020-09-29

Applicant: Airbus Operations Limited

Inventor： Andrew RAMSHAW

IPC: F16C19/38 ,  B64C25/36

Abstract: A packaged bearing unit is disclosed including an outer surface for receiving an aircraft landing gear wheel and an inner surface for receiving an axle. The unit may include first and second spaced-apart sets of tapered roller bearings, held between inner and outer raceways. There may be a bearing setting spacer which can be used when setting and pre-loading the bearings. The bearing unit may be a sealed unit which includes a pre-set amount of lubricant (grease) for lubricating the bearings. One or more sensors may be retained in a void between the sets of bearings. The bearing unit may remain fixed to the axle when the wheel is removed. The bearing unit may be serviced less frequently than the wheels, and may thus have a longer lifetime, possibly comparable with the lifetime of the major components of the landing gear.