Mechanism and optimization of layer parameters on performance of Fe/CFRP hybrid structure

doi:10.19936/j.cnki.2096-8000.20230628.014

Abstract

Abstract: In order to study the Fe/CFRP (carbon fiber reinforced polymer) hybrid structure machine tool components that met the requirements of lightweight and high damping, in this paper, the three-dimensional structural topology optimization of integral metal beam was carried out by using the variable density method with constraint factors, and the damping characteristics are improved by laying CFRP free damping layer. Based on the response surface method, the regression equation of key pavement parameters on structural maximum deformation and damping loss factor was established, and the pavement parameters and beam performance were analyzed. Genetic algorithm was used to optimize the layer parameters of composite beam globally. The results showed that when the laying-angle was 46.03°,the 0° laying-thickness ratio was 25.39% and the laying-order was C₂,the composite performance of Fe/CFRP hybrid milling machine is best, and its stiffness was unchanged. The weight was reduced by 35.7%, and the damping performance was improved by 62.7%, the experimental results are consistent with the simulation results.

Key words: Fe/CFRP hybrid structure, planomiller crossbeam, ply parameters, damping, stiffness

CLC Number:

TB332

JING Shuowen, WANG Fazhan, HE Haoping, HUANG Kepeng. Mechanism and optimization of layer parameters on performance of Fe/CFRP hybrid structure[J]. COMPOSITES SCIENCE AND ENGINEERING, 2023, 0(6): 95-103.

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