Structural Optimization of Long and Flexible Composite Cover with Topography Method and Examination of Frequency Values

Year 2023, Volume 27, Issue 1, 135 - 149, 28.02.2023

Mehmet Can KATMER Adnan AKKURT Tolga KOCAKULAK

https://doi.org/10.16984/saufenbilder.1050243

Abstract

In this study, the finite element model of the long, thin, and flexible carbon fiber reinforced composite cover design prepared using the Unigraphics NX program CAD module was analyzed in ANSYS program. Topography optimization was performed by transferring the analysis results to the GENESIS program. The cover rib created after optimization was combined with the initial design, and necessary corrections were made in the design based on the topography guide. The rib design, created by conventional methods, weigh the same as the optimum design, is combined with of the initial design. Modal analysis of initial, conventional rib and optimum rib design was performed in ANSYS environment. When the findings were evaluated it was observed that the composite cover, which was remodeled after topography optimization, increased by 33.3% compared to the initial design, while its natural frequency (mode 2) increased approximately 1.6 times. In addition, the lowest moment of inertia value has been obtained in the cover design with optimum design geometry. Then, the conventional design, which has the same mass as the new design, was compared and it was revealed by the data that the new design was more resistant. According to the results obtained, the most suitable rib geometry to be preferred for this and similar types of long and flexible structures to have a more resistant structure has been determined.

Keywords

Topography, optimization, composite, design, modal analysis, frequency

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