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Journal of System Simulation

Abstract

Abstract: To investigate the natural frequency characteristics of composite laminates under parametric uncertainties and the different degree of influence of these parameters on the natural frequency under different boundary conditions and different vibration orders, a two-dimensional anisotropic medium-thick plate material model and a three-dimensional anisotropic cylindrical thin-shell material vibration model are established. Aiming at the uncertainty of structural parameters of these composite materials, the composite material vibration simulation and multivariate statistical analysis software are developed to simulate the structural vibration of composite materials. A multivariate statistical analysis method for natural frequency uncertainty of composite materials is presented. Through principal component analysis and factor analysis methods, the data dimensionality is reduced, and the natural frequency of materials can be expressed by a few principal components or factor components, so as to finally achieve the purpose of analyzing and dealing with the uncertainty of natural frequency of composite materials more efficiently and accurately, and solve the complicated problem of the uncertainty analysis process of composite materials. This can improve the efficiency of composite structural design in various fields.

First Page

571

Last Page

583

CLC

TP391.9

Recommended Citation

Guo Bo, Tie Ming, Fan Wenhui. Vibration Simulation and Multivariate Statistical Analysis Method of Composite Structures[J]. Journal of System Simulation, 2025, 37(3): 571-583.

Corresponding Author

Tie Ming

DOI

10.16182/j.issn1004731x.joss.24-0129

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