期刊
OPTICS AND LASERS IN ENGINEERING
卷 48, 期 6, 页码 676-683出版社
ELSEVIER SCI LTD
DOI: 10.1016/j.optlaseng.2010.01.010
关键词
DVC; 3D measurements; Scattered light; Numerical modelling; Spherical plain bearings
类别
On Airbus aircraft, spherical plain bearings are used on many components; in particular to link engine to pylon or pylon to wing. Design of bearings is based on contact pressure distribution on spherical surfaces. To determine this distribution, a 3D analysis of the mechanical behaviour of aeronautical plain bearing is presented in this paper. A numerical model has been built and validated from a comparison with 3D experimental measurements of kinematic components. For that, digital volume correlation (DVC) coupled with optical scanning tomography (OST) is employed to study the mechanical response of a plain bearing model made in epoxy resin. Experimental results have been compared with the ones obtained from the simulated model. This comparison enables us to study the influence of various boundary conditions to build the FE model. Some factors have been highlighted like the fitting behaviour which can radically change contact pressure distribution. This work shows the contribution of a representative mechanical environment to study precisely mechanical response of aeronautical plain bearings. (C) 2010 Elsevier Ltd. All rights reserved.
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