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Dynamic analysis of composite materials wing structure
Author(s): 
Pages: 11-15
Year: Issue:  3
Journal: Aircraft Design

Keyword:  composite materialsFEMmodal analysisdynamic analysis;
Abstract: For aircraft during flight complex vibration,he Finite Element M odel for the Composite M aterials Wing Structure w as build and composite laminates w as arranged rationally. By comparing the composite w ing w ith metal w ings modal calculation results,each order of modal frequency of composite w ing w as bigger than metal structures. And comparing the modal results of different ply angles modals,ply angle not only had a great effect on the structural modal frequencies but also on vibration mode. Considering the vertical gust load under certain conditions,the research displacement,velocity and acceleration changes of the w ing structure w ith time w as did,and in the period w hich the load acting,the displacement,velocity and acceleration of the w ing all w ere follow ed the simple harmonic motion w ith time going on.
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