Structural integrity monitoring of HERON TP UAV structure during full scale static and fatigue tests using optical fiber distributed strain sensing

U. B. Simon, S. Shoam, N. Goldstein, I. Kressel*, R. Davidi, M. Tur

*Corresponding author for this work

Research output: Contribution to conferencePaperpeer-review

Abstract

An optical fiber based Rayleigh backscattering distributed strain sensing system was adopted as the main structural integrity monitoring tool for the IAI's HERON-TP UAV Full-Scale fatigue and ultimate tests. The strain signature along all major structural elements, as measured by the optical fibers, at each loading step was recorded and analyzed in real time. A specially developed human interface enabled easy tracking of emerging damage-related nonlinear phenomena. This sensing concept reduces the need for adding hundreds of electrical strain gauges and minimize intermediate conventional structural inspections during test, all leading to reducing test duration and cost.

Original languageEnglish
Pages1323-1327
Number of pages5
StatePublished - 2018
Event58th Israel Annual Conference on Aerospace Sciences, IACAS 2018 - Tel-Aviv and Haifa, Israel
Duration: 14 Mar 201815 Mar 2018

Conference

Conference58th Israel Annual Conference on Aerospace Sciences, IACAS 2018
Country/TerritoryIsrael
CityTel-Aviv and Haifa
Period14/03/1815/03/18

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