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Integrated design optimization of composite frames and materials for maximum fundamental frequency with continuous fiber winding angles

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Acta Mechanica Sinica 2018年第6期34卷 1084-1094页

作者： Zunyi Duan Jun Yan ikjin lee Jingyuan Wang Tao Yu State Key Laboratory of Structural Analysis for Industrial Equipment Department of Engineering MechanicsInternational Research Center for Computational MechanicsDalian University ofTechnologyDalian 1 16024China Department of Mechanical Engineering Korea Advanced Institute of Science and TechnologyDaejeon 34141Republic of Korea Harbin Electric Power Equipment Company Limited Harbin Electric Corporation LimitedHarbin 150028China

Fiber reinforced composite frame structure is an ideal lightweight and large-span structure in the fields of aerospace,satellite and wind *** fundamental frequency is one of key indicators in the design requirement of the composite frame since structural resonance can be effectively avoided with the increase of the fundamental *** by the concept of integrated design optmization of composite frame structures and materials,the design optimization for the maximum structural fundamental frequency of fiber reinforced frame structures is *** optimization model oriented at the maximum structural fundamental frequency under a composite material volume constraint is *** kinds of independent design variables are optimized,in which one is variables represented structural topology,the other is variables of continuous fiber winding *** analysis of the frequency with respect to the two kinds of independent design variables is implemented with the semi-analytical sensitivity *** representative examples in the manuscript demonstrate that the integrated design optimization of composite structures can effectively explore coupled effects between structural configurations and material properties to increase the structural fundamental *** proposed integrated optimization model has great potential to improve composite frames structural dynamic performance in aerospace industries.

关键词： Integrated optimization Maximum fundamental frequency Composite frame structures Continuous fiber winding angle Semi-analytical sensitivity analysis

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