Natural characteristics analysis of aircraft wing box based on finite element method and measured data

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dc.contributor.authorWei, Zhang
dc.contributor.authorLing, An Lu
dc.contributor.authorGeng, Xu Yi
dc.contributor.authorPing, Wu Xiu
dc.contributor.authorQiang, Gao Guo
dc.date.accessioned2020-01-30T15:26:41Z
dc.date.available2020-01-30T15:26:41Z
dc.date.issued2018-04-20
dc.description.abstractCompared with other mechanical products, aircraft structures have more rigorous requirements on flying performance, safety, reliability and service life. Based on the finite element method (FEM), the key component of the wing box model is explored in this paper, which provides a reference for the structure design and manufacture of aircraft wing box. The three-dimensional point cloud data of components are obtained by optical measurement systems, the deviation analysis between the point cloud model and the nominal model is carried out as a prerequisite, and then the natural characteristics of the model is analyzed. The results show that 99.15 % of the measured points have deviations within 0.38 mm, which verifies the accuracy of the nominal model. The first six modes are all bending modal shape, and the larger amplitude region mainly occurs in the wing ribs, which means its bending strength should be improved for structure design. Besides, the sixth-mode simultaneously result in front spar, stringer and rib bending vibration.en_UK
dc.identifier.citationWei Z, Ling AL, Geng XY, et al., (2018) Natural characteristics analysis of aircraft wing box based on finite element method and measured data. Vibroengineering Procedia, Volume 17, April 2018, pp. 62-66en_UK
dc.identifier.issn2345-0533
dc.identifier.urihttps://doi.org/10.21595/vp.2018.19679
dc.identifier.urihttps://dspace.lib.cranfield.ac.uk/handle/1826/15047
dc.language.isoenen_UK
dc.publisherJVE Journalsen_UK
dc.rightsAttribution 4.0 International*
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/*
dc.subjectwing boxen_UK
dc.subjectpoint clouds processingen_UK
dc.subjectnatural characteristicsen_UK
dc.subjectfinite element methoden_UK
dc.titleNatural characteristics analysis of aircraft wing box based on finite element method and measured dataen_UK
dc.typeArticleen_UK

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