Non-invasive dynamic measurement of helicopter blades

24th A.I.VE.LA. Annual Meeting

Serafini, J.^1 ; Bernardini, G.^1 ; Mattioni, L.^1 ; Vezzari, V.^2 ; Ficuciello, C.^3

Department of Engineering, University Roma Tre, Via della Vasca Navale 79, Rome

00144, Italy^1

Globalsensing S.r.l., Via Portuense 956, Rome

00148, Italy^2

I.R.I. Italian Rotors Industries S.r.l., Via delle Valli 44/C, Aprilia

04011, Italy^3

关键词: Dynamic measurement;    Feedback device;    Helicopter blades;    Measurement system;    Quality checks;    Rotating systems;    Structural characterization;    Torsion deformation;   

Others  :  https://iopscience.iop.org/article/10.1088/1742-6596/882/1/012014/pdf
DOI  :  10.1088/1742-6596/882/1/012014

来源: IOP

【 摘 要 】

This paper presents the development and the application on helicopter blades of a measurement system based on FBG strain gauges. Here, the main goal is the structural characterization of the main rotor blades, with the aim of showing the potentialities of such a system in blades quality check applications, as well as in the development of structural health monitoring and rotor state feedback devices. The device has been used in both non-rotating and rotating tests, and does not require the presence of slip rings or optical joint since it is completely allocated in the rotating system. It has been successfully applied to characterize the frequency response of blades lead-lag, flap and torsion deformations, up to 250 Hz.