Feasibility Study of Online Monitoring Using the Fiber Bragg Grating Sensor for Geared System

Shenghao Shi, Yongzhi Qu, Jinglin Wang, Liu Hong, Jaspreet Singh Dhupia, Zude Zhou

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

The gearbox is one of the most common and important components in the drivetrains. Thus, the online monitoring of the dynamic behavior of geared system is crucial for the optimization, diagnosis and prognosis of the drivetrains. The conventional online monitoring system for gearboxes is to use the vibration sensor mounted on the gear housing. However, in the measured housing vibration signal, the dynamic response of the monitored geared pair is usually distorted, which is caused by the complex transfer path of the vibration. Therefore, to advance the art of online monitoring of gearboxes, this work proposes to employ the fiber Bragg grating as the strain sensor to mount near the gear mesh region. The experimental assessment of the feasibility of the fiber Bragg grating based online monitoring system is conducted in a laboratory fixed-axis spur gearbox. To validate and analyze the measurement from the fiber Bragg grating system, a gear mesh model is developed using the finite element method. The comparison between the measurement and theoretical simulation show the proposed fiber Bragg grating based online monitoring system is capable to capture the variation of the root strain during the gear mesh process. This result proves the proposed technique has a promising potential in developing a commercial online monitoring system to measure the subtle dynamic behavior of gearboxes.

Original languageEnglish (US)
Title of host publication2019 Prognostics and System Health Management Conference, PHAI-Qingdao 2019
EditorsWei Guo, Steven Li, Qiang Miao
PublisherInstitute of Electrical and Electronics Engineers Inc.
ISBN (Electronic)9781728108612
DOIs
StatePublished - Oct 2019
Externally publishedYes
Event10th Prognostics and System Health Management Conference, PHM-Qingdao 2019 - Qingdao, China
Duration: Oct 25 2019Oct 27 2019

Publication series

Name2019 Prognostics and System Health Management Conference, PHM-Qingdao 2019

Conference

Conference10th Prognostics and System Health Management Conference, PHM-Qingdao 2019
Country/TerritoryChina
CityQingdao
Period10/25/1910/27/19

Bibliographical note

Funding Information:
The work is supported by National Natural Science Foundation of China (Grant No.51605349) and Aeronautical Science Foundation of China (Grant No.20173365001)

Funding Information:
ACKNOWLEDGMENT This research is supported by National Natural Science Foundation of China (Grant No. 51605349) and Aeronautical Science Foundation of China (Grant No. 20173365001).

Publisher Copyright:
© 2019 IEEE.

Keywords

  • FBG sensors
  • dynamic strain
  • finite element model

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