Three-dimensional vibration analysis method for composite laminated structure
A technology of composite material layer and analysis method, which is applied in the field of three-dimensional vibration analysis of composite material laminated structures, and can solve problems such as large differences in calculation results
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[0035] The present invention will be further described below in conjunction with the accompanying drawings.
[0036] The present invention includes:
[0037] (1) In each layer of the structure, J non-uniformly distributed calculation planes are set along the thickness direction, and the first and Jth calculation planes are selected as the lower surface and upper surface of the layer, respectively. The positions of the 2nd to J-1th calculation planes in the thickness direction are shifted Legendre polynomials P J-2 (z) in the interval [0,h l ]’s real zero point, that is:
[0038] P J - 2 ( z ) = 1 2 ...
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