Ou, H.; Liu, J.; He, J.; Pang, Z.; Zhang, Y.; Wei, W.; Wang, H.; Zhao, G.; Wen, G. Designing a Sandwich Aircraft Spoiler with Lattice Structure Cores. Preprints2019, 2019030023. https://doi.org/10.20944/preprints201903.0023.v1
APA Style
Ou, H., Liu, J., He, J., Pang, Z., Zhang, Y., Wei, W., Wang, H., Zhao, G., & Wen, G. (2019). Designing a Sandwich Aircraft Spoiler with Lattice Structure Cores. Preprints. https://doi.org/10.20944/preprints201903.0023.v1
Chicago/Turabian Style
Ou, H., Gang Zhao and Guilin Wen. 2019 "Designing a Sandwich Aircraft Spoiler with Lattice Structure Cores" Preprints. https://doi.org/10.20944/preprints201903.0023.v1
Abstract
By combing continuum topology optimization (TO) method and lattice structure technique, a sandwich aircraft spoiler with a high stiffness-to-weight is designed. TO method is served to produce the shell of the aircraft spoiler and the lattice structure, used as cores, is employed to support the shell. TO problem is established as maximizing the stiffness of the structure with limited material volume. Density-based method is utilized to achieve a 0/1 solution. We then empirically replace the core of the aircraft spoiler by using 3D kagome lattice structure. Two different materials, i.e., aluminum alloy and titanium alloy, are synthetically applied to further reduce the weight and simultaneously improve the strength of the aircraft spoiler. Numerical simulations are conducted to show that the designed aircraft spoiler can meet the service environment with a reduction of its weight by approximately 80% when compared with that of the initial design model. Finally, we have fabricated the designed model with photosensitive resin by using 3D printing technique.
Keywords
aircraft spoiler; topology optimization; lattice structure; high stiffness-to-weight ratio
Subject
Engineering, Mechanical Engineering
Copyright:
This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
