Next Article in Journal
The Use of Data from the Parkinson’s KinetiGraph to Identify Potential Candidates for Device Assisted Therapies
Previous Article in Journal
Monitoring Chemical Processes Using Judicious Fusion of Multi-Rate Sensor Data
Previous Article in Special Issue
Identification of Ground Intrusion in Underground Structures Based on Distributed Structural Vibration Detected by Ultra-Weak FBG Sensing Technology
Article Menu

Export Article

Open AccessArticle

Strain Monitoring of a Composite Drag Strut in Aircraft Landing Gear by Fiber Bragg Grating Sensors

1
Department of Engineering, University of Naples “Parthenope”, Centro Direzionale Isola C4, 80143 Napoli, Italy
2
Infratel Italia S.p.A, 00187 Roma, Italy
3
Magnaghi Aeronautica SpA, via Galileo Ferraris, 76, 80142 Napoli, Italy
*
Author to whom correspondence should be addressed.
Sensors 2019, 19(10), 2239; https://doi.org/10.3390/s19102239
Received: 11 April 2019 / Revised: 12 May 2019 / Accepted: 12 May 2019 / Published: 15 May 2019
(This article belongs to the Special Issue Fiber Optic Sensors for Structural and Geotechnical Monitoring)
  |  
PDF [3552 KB, uploaded 15 May 2019]
  |     |  

Abstract

This work reports on the use of Fiber Bragg Grating (FBG) sensors integrated with innovative composite items of aircraft landing gear for strain/stress monitoring. Recently, the introduction of innovative structures in aeronautical applications is appealing with two main goals: (i) to decrease the weight and cost of current items; and (ii) to increase the mechanical resistance, if possible. However, the introduction of novel structures in the aeronautical field demands experimentation and certification regarding their mechanical resistance. In this work, we successfully investigate the possibility to use Fiber Bragg Grating sensors for the structural health monitoring of innovative composite items for the landing gear. Several FBG strain sensors have been integrated in different locations of the composite item including region with high bending radius. To optimize the localization of the FBG sensors, load condition was studied by Finite Element Method (FEM) numerical analysis. Several experimental tests have been done in range 0–70 kN by means of a hydraulic press. Obtained results are in very good agreement with the numerical ones and demonstrate the great potentialities of FBG sensor technology to be employed for remote and real-time load measurements on aircraft landing gears and to act as early warning systems. View Full-Text
Keywords: Fiber Bragg gratings; fiber optic sensors; aircraft landing gear; load monitoring system; composite device Fiber Bragg gratings; fiber optic sensors; aircraft landing gear; load monitoring system; composite device
Figures

Figure 1

This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited (CC BY 4.0).
SciFeed

Share & Cite This Article

MDPI and ACS Style

Iadicicco, A.; Natale, D.; Di Palma, P.; Spinaci, F.; Apicella, A.; Campopiano, S. Strain Monitoring of a Composite Drag Strut in Aircraft Landing Gear by Fiber Bragg Grating Sensors. Sensors 2019, 19, 2239.

Show more citation formats Show less citations formats

Note that from the first issue of 2016, MDPI journals use article numbers instead of page numbers. See further details here.

Related Articles

Article Metrics

Article Access Statistics

1

Comments

[Return to top]
Sensors EISSN 1424-8220 Published by MDPI AG, Basel, Switzerland RSS E-Mail Table of Contents Alert
Back to Top