Experimental and Numerical Research of the Dynamic Response of Composite Outlet Guide Vane for Aircraft Jet Engine

А, Гринев М; Anoshkin, A. N.; Pisarev, P. V.; Shipunov, G. S.; Nikhamkin, Mikhail; Балакирев, А А; Konev, I P; Golovkin, Artem; Ю, Головкин А

doi:10.15593/perm.mech/2016.4.07

Cited by 2 publications

(1 citation statement)

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“…The first modal test of each sample was carried out before fatigue tests. The modal tests were performed by the scanning laser vibrometry technique [19][20][21] using laser vibrometer PSV-400-3D. The principal advantage of the technique is the non-contact measurement and the ability to find a large number of eigenmodes and natural frequencies with high accuracy.…”

Section: Experimental Techniquementioning

confidence: 99%

Change of the Elastic Characteristics of a Fiber-Reinforced Laminate as a Result of Progressive Fatigue Damage

Nikhamkin

Solomonov

2021

SSP

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It is a widely known fact that the stiffness of polymer composite materials decreases with the accumulation of fatigue damage under cyclic loading. The purpose of this article is to develop a method and obtain experimental data on decrease of the elastic characteristics of a fiber-reinforced laminate, as a result of progressive fatigue damage. The developed technique consists of two stages. At the first one, the natural frequencies and eigenmodes of the samples during their fatigue testing are experimentally obtained. The dependences of the natural frequencies of the samples on the number of loading cycles are found. At the second stage, the four elasticity parameters of the laminate monolayer (two Young modules, the shear module and Poisson's ratio) are identified via the natural frequencies. The inverse numerical/experimental technique for material properties identification is applied. The dependences of the natural frequencies and mentioned elastic characteristics on the relative fatigue life are obtained as experimental results of both modal and fatigue tests. The results can be useful to study the fatigue behavior of the investigated materials and to create methods for calculating fatigue life.

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Section: Experimental Techniquementioning

confidence: 99%

Change of the Elastic Characteristics of a Fiber-Reinforced Laminate as a Result of Progressive Fatigue Damage

Nikhamkin

Solomonov

2021

SSP

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Verification of a design model and evaluation of a technique of manufacturing aircraft engine composite parts on the basis of dynamic tests

Zinin

Arkhipov

Холобцев

et al. 2019

VESTNIK of Samara University. Aerospace and Mechanical Engineer

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The results of finite element modeling and experimental evaluation of dynamic characteristics (vibration modes and frequencies) of the composite element of aircraft power plant structures are presented. The aim of the work is to develop effective design and technological schemes for thin-walled complex-geometry composite parts, taking into account the peculiarities of mechanical behavior of polymer composite materials to the fullest extent possible. A method for determining the parameters of natural oscillations of composite parts in a free state using a ping test is developed, which allows excluding the influence of kinematic boundary conditions and obtaining frequency characteristics that depend only on the local characteristics of the material which are primarily determined by the manufacturing technology. According to the results of measurements of the amplitude-frequency parameters of the dynamic response, spectrograms of damped oscillations are obtained the peak values of which correspond to the experimental evaluation of the natural frequencies of the composite part. Verification of the design model was carried out according to the results of the ping test and a method for assessing the quality of technological processes of manufacturing thin-walled carbon fiber structures was proposed.

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Experimental and Numerical Research of the Dynamic Response of Composite Outlet Guide Vane for Aircraft Jet Engine

Cited by 2 publications

References 1 publication

Change of the Elastic Characteristics of a Fiber-Reinforced Laminate as a Result of Progressive Fatigue Damage

Change of the Elastic Characteristics of a Fiber-Reinforced Laminate as a Result of Progressive Fatigue Damage

Verification of a design model and evaluation of a technique of manufacturing aircraft engine composite parts on the basis of dynamic tests

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