Systems and methods for monitoring health of vibration damping components

Patent metadata

Field	Value
Publication number	US-10073811-B2
Application number	US-201614989900-A
Country	US
Kind code	B2
Filing date	Jan 7, 2016
Priority date	Dec 6, 2011
Publication date	Sep 11, 2018
Grant date	Sep 11, 2018

Abstract

A method for health monitoring of a damper associated with a landing gear is described which includes receiving sensor data from a pressure transducer and an accelerometer and optionally a thermal sensor operably mounted on or near the damper, a computer system, and applying, using the computer system, a diagnostic algorithm to the sensor data to induce and predict the health of the damper.

First claim

What is claimed is:

1. A method for health monitoring of a damper associated with a landing gear of an aircraft, the method comprising:
receiving vibration data measured during ground operations by at least one accelerometer operably mounted on or near the landing gear; and
applying, with a computer system, a diagnostic algorithm to the vibration data to produce a health assessment of the damper, wherein the damper is configured to reduce a rotational oscillation of a lower landing gear assembly with respect to an upper landing gear assembly.

2. The method according to claim 1 wherein receiving the vibration data comprises:
receiving the vibration data at a processor module associated with the at least one accelerometer; and
transmitting the vibration data from the processor module to a data concentrator.

3. The method according to claim 2 further comprising collating the vibration data with a plurality of aircraft parameters received by at least one of the data concentrator and a separate computing system.

4. The method according to claim 2 wherein applying the diagnostic algorithm to the vibration data comprises executing a health algorithm on at least one of the data concentrator and a separate computing system.

5. The method according to claim 1 further comprising transmitting the health assessment and the vibration data to a ground-based health application for storage in a database.

6. The method according to claim 5 further comprising operating the ground-based health application to perform trending and predict a future health of the damper.

7. The method according to claim 1 wherein the damper is one of a plurality of dampers, the method further comprising:
receiving vibration data associated with each of the plurality of dampers at a respective processor module associated with each damper; and
transmitting the vibration data from each processor module to a data concentrator.

8. The method according to claim 7 further comprising filtering and time stamping the vibration data at the respective processor modules before transmitting to the data concentrator.

9. The method according to claim 1 wherein applying the diagnostic algorithm comprises determining a source of vibration of the damper.

10. The method according to claim 1 further comprising:
providing the health assessment to a health application operating on an external computer system not aboard the aircraft;
extracting, by the external computer system, relevant historical data from a database; and
determining, by the external computer system, a projected future health for the damper based on the relevant historical data and the health assessment.

11. A health monitoring system for a damper associated with a landing gear of an aircraft, the health monitoring system comprising:
at least one accelerometer mounted on or near the landing gear, said at least one accelerometer operable to measure vibration data during ground operations; and
a diagnostic computer communicatively coupled to said at least one accelerometer, said diagnostic computer programmed to apply a diagnostic algorithm to the vibration data to produce a health assessment of the damper, wherein the damper is configured to reduce a rotational oscillation of a lower landing gear assembly with respect to an upper landing gear assembly.

12. The health monitoring system according to claim 11 further comprising a processor module proximate the damper and communicatively coupled to said at least one accelerometer and said diagnostic computer, said processor module programmed to collect the vibration data from said at least one accelerometer and transmit the vibration data to said diagnostic computer.

13. The health monitoring system according to claim 12 wherein said processor module is further programmed to filter and time stamp the vibration data.

14. The health monitoring system according to claim 11 wherein said diagnostic computer is further programmed to collate the vibration data with a plurality of aircraft parameters received by said diagnostic computer.

15. The health monitoring system according to claim 11 wherein said diagnostic computer is further programmed to transmit the health assessment and the vibration data to a ground-based health application for storage in a database.

16. The health monitoring system according to claim 15 wherein said diagnostic computer is further programmed to perform trending and predict a future health of the damper.

17. The health monitoring system according to claim 11 wherein the damper is one of a plurality of dampers, said health monitoring system further comprising a respective processor module associated with each of the plurality of dampers, each said processor module programmed to receive vibration data associated with said associated damper and to transmit the vibration data to said diagnostic computer.

18. The health monitoring system according to claim 11 further comprising a ground station communicatively coupled to said diagnostic computer, said ground station programmed to:
receive the health assessment from said diagnostic computer;
extract relevant historical data from a database; and
determine a projected future health for the damper based on the relevant historical data and the health assessment.

19. The health monitoring system according to claim 11 further comprising at least one energy harvesting device operable to utilize vibration of the landing gear to generate power to operate said accelerometer.

20. An apparatus for monitoring a health of at least one vibration damping component associated with a landing gear, said apparatus comprising:
at least one accelerometer capable of measuring response attributes of the at least one vibration damping component during ground operations; and
at least one processor capable of receiving and analyzing data extracted from said at least one accelerometer to determine a real-time health, predict a future health state, and establish a current performance capability of the at least one vibration damping component, wherein the at least one vibration damping component is configured to reduce a rotational oscillation of a lower landing gear assembly with respect to an upper landing gear assembly.

Assignees

• Boeing Co

Inventors

• Swearingen Kevin L
• Mitchell Bradley J
• Maggiore Jeanne C
• Dame Stephen Gregory
• Followell David A
• Grgas Dane Joe

Classifications

• G01M17/04 Primary

  Suspension or damping · CPC title

• G07C5/008

  communicating information to a remotely located station (transmission systems for measured values G08C) · CPC title

• B64D45/00

  Aircraft indicators or protectors not otherwise provided for · CPC title

• B64C25/505

  Shimmy damping · CPC title

• B64D2045/0085

  Devices for aircraft health monitoring, e.g. monitoring flutter or vibration · CPC title